First, welcome to Christian Forums, and I would say this is a good place for this.
I have learned that the Lord's Supper is a family occasion. Any child who has trusted in Jesus automatically is welcome to join in communion. It is not about an individual, but a child realizes he or she has trusted in Jesus and now is a child of God and simply the child joins in communion.
So, in case one of your children has some issue about other children being excited about starting communion . . . if your child has already started, why would your child have an issue??
But in case your children are worrying about other children doing something, you can talk about what your children need to be doing, and not only comparing themselves with others.
Have they trusted in Jesus so they know they are part of God's family and therefore to be included in the Lord's Supper? This is a family occasion; there is no need for some individual thing of initiation, but we do this as family. But if ones want an individual celebration and excitement about it . . . we do individual celebrating, too
But if there is individual celebration, it is silly for others to get jealous. If we love one another as ourselves, we are glad for others who have and do what we don't.
So, why are they worried and jealous about other children having first communion? What are they seeing that has them concerned?? Being excited and getting attention does not automatically mean something is right. It does not automatically mean someone is happy. This would go for religious things and for sports and marriage.
We see in life, how so many are so excited and happy when they get married . . . then comes reality of how they are becoming as persons and couples.
For example, singles can see how other church members get married and then seem so blessed, but the singles and divorced members can feel they are missing out on something . . . instead of loving those married people as themselves and therefore being glad for them and thanking God for how they are blessed. I experience that if I love someone else as myself, then that person getting blessed is just the same as if it was me; and so I can benefit even like that person, inside myself! And I would say that ones loving like this are satisfied with Jesus, better than any human activity can please and satisfy them.
So, this might be a teachable moment . . . for how to not compare and how to love - - and how to evaluate how others really are doing while they appear to be excited and happy.
And make sure you help them to understand what God's word says about the Lord's Supper. You can check out 1 Corinthians 11. I note how Paul tells those Corinthians that they need to relate with one another in Jesus' loving way while having their communion > this is what I get, anyway. It is a love time, not only an individual getting one's own self blessed thing. And it shows the Lord's death until He comes, Paul says. So, where your attention is is important, during the Lord's Supper.
And there are Catholics here in Christian Forums, who are welcome to post here and give you their advice which understandably will be according to Catholic beliefs about communion. You can read their sharing and you can read in threads where we are allowed to debate about what communion is and what the Bible says about it. And then you can talk with your children about the Catholic way and your way of communion. And they can then see what they should be excited about and what not >
"Test all things; hold fast what is good." (1 Thessalonians 5:21)
They need to learn how to test, and not get excited about things just because others seem excited and happy about something. Going along with others can lead to wrong religion, foolish overemphasis on succeeding in sports, stressing out and abusing themselves in order to keep up with what worldly people are doing professionally, drugs, smoking, immorality, and unwise choice making about who they marry. So, they need to be prayerful and careful not to do things only because of peer influence and how people can make things look.
For me, it helps to simply have knowledge of what the Bible says. And when I need to make a choice, be quiet in prayer and trust God to have me with Him in His personal guiding in His peace, then enjoy discovering what He has me doing > with
"rest for your souls." (in Matthew 11:28-30)
And while I am staying attentive to God in His peace, this helps to keep me from comparing myself with other people and what they have and do. And I have people who I would say are real Christian examples to help me find out how to be as a person, what matters the most, and how to relate with love for each and every person . . . including as family with other children of God. And being with God and relating as family is what feeds my communion experience, by the way. It is not only about getting myself to Heaven and getting grace for my own self; we minister God's own grace to one another >
"As each one has received a gift, minister it to one another, as good stewards of the manifold grace of God." (1 Peter 4:10)
The way I was Catholic was obviously wrong. I was mainly about getting my own self into Heaven. I hardly cared about anyone else. I knew Jesus' message about loving; yet, I could judge girls and women by what they looked like and even be disgusted with females who did not look cute; so I was a horrible person who had no clue how to love, except I would treat people nice and people actually thought I was a nice person . . . of all things!
Now, clearly, I was not taught in my Catholic upbringing to be like that . . . of course. But right while I could go to confession every weekend, at the same time I could be so anti-love with females and I could give in to major torment of ongoing worry and building up for explosions of my ill temper > never confessing those so anti-love things, and supposing I was doing everything to make it to Heaven.
So, how I really was was wrong; being Catholic had nothing to do with it, I would say. Then I trusted in Jesus and started to realize how horrible I have been. And having personal examples have helped me a lot to see this. A point I could make, I suppose, is that going to a communion service is not the same as actually getting to know someone who is a Jesus love person. When the disciples had their first communion, they were with Jesus, right? So, right during their communion they were experiencing how Jesus was personally loving each of them . . . so that later they could obey how Jesus said,
"This is My commandment, that you love one another as I have loved you." (John 15:12)
So, I dare say that you need to become a part of your children's communion experience, by being their example of how Jesus has us loving in His family caring and sharing way, and
"without complaining and disputing," by the way > see and feed on Philippians 2:13-16 < you can talk with your children about this, and show them such loving in how you relate with your wife, so they can learn how to love in a close relationship . . . so they are wise not to be bounced around by peer excitements and fads.
And you need to have others they know, who also are such examples.
"Let all bitterness, wrath, anger, clamor, and evil speaking be put away from you, with all malice. And be kind to one another, tenderhearted, forgiving one another, even as God in Christ forgave you." (Ephesians 4:31-32)
In the communion we have with Jesus, then, we become forgiving
"even as God". Jesus in us shares with us how kindly and tenderly and generously He forgives.
"And walk in love, as Christ also has loved us and given Himself for us, an offering and a sacrifice to God for a sweet-smelling aroma." (Ephesians 5:2)
This is where Biblical communion brings our attention, showing
"the Lord's death till He comes" > in 1 Corinthians 11:26 > including by loving the way Jesus on Calvary was loving us while He was so suffering and dying for us.