So, what is your opinion or reasoning?
animals do not sin, so its not about salvation.
I think I have seen how animals can behave in a selfish way, and in ways which the Bible says is not right. For example, "fear of death" is slavery to Satan > I offer Hebrews 2:14-15. And it appears how various wild and domesticated animals live according to "fear of death". So, I see this can mean there is the evil "spirit of fear" (Romans 8:15) causing how a number of animals live and react.
Also, I see the behavioral pattern of how various animals live mainly for their own selves, including with competition and jealousy, instead of loving all others as their own selves and wanting what is good for others just as much as for their own selves.
"if you love those who love you, what reward have you?" Jesus says in Matthew 5:46.
And then, of course, we have people who love their pets, but they are not investing in getting real correction so we can love any and all people as our own selves. For such people, pets might be comfort love, like comfort food which can make someone feel better but without getting strength of Jesus (Ephesians 6:10) against fear of death stuff and strength for staying out of arguing and complaining (Philippians 2:13-16) and strength so we can relate without getting hurt >
"And who is he who will harm you if you become followers of what is good?" (1 Peter 3:13)
With Jesus, we can become forgiving and examples to show wrong and cruel people how they need to become in love. We see how the Bible says people have become and need to be "examples" > 1 Thessalonians 1:7, 1 Peter 5:3.
But I have seen how dogs can be mainly or only about reading their pee-mail, possibly like how certain people now can only or mainly relate with their cell phones.
We need to prepare for Heaven which is in all-loving love. We can get strong in Jesus so we can handle how people around us are not right and not nice and even abusive, so we can help them to come to Jesus and trust in Him.
But in case we are mainly trusting in pets for love . . . and our pets are mainly loving us . . . being mainly about each other is not relating with Jesus and learning how He has us loving with "rest for your souls." (Matthew 11:28-30) Comfort love is not real correction > Hebrews 12:4-11.
But God does give us "all things to enjoy." (in 1 Timothy 6:17) So, we are welcome to enjoy nature and our pets, but in the restoration all will be all-loving, in the "glorious liberty of the children of God." (in Romans 8:20-21)
So, we can pray this and seek this, and not be wishful.