One thing to remember is the Commandment, "Honour your father and mother". Perhaps your mother has more wisdom about these things than you. It may not be pleasant for your self-will to be challenged with following your mother's insistence to protect yourself against a deadly virus. But if we are to accept the authority of the Bible, then honouring your mother against your own wishes may be God's standard for you.
Would you worship an idol instead of God? Would you commit adultery? Do you think that it crucial to love God will all your heart and strength? Then if you put vital importance on following these Commandments, which show the fruits of repentance in you, then honouring your mother is at the same level. You can't choose which ones to obey and which ones to refuse. Either you keep them all or none of them.
So, do you really love Christ? Then you will follow Him and allow the Word of God to guide your actions and not what you think it is best for yourself.
With respect, your answer presumes that the mother in this case is honoring God in her choices, and further assumes that the father in this situation was also doing the same.
But if those assumptions turn out to be wrong, then like a set of dominoes, "all will fall down".
That is why God gave us a brain, that we might seek Him first in all things, and see what His will is.
"When I was a child, I thought like a child, and spoke like a child. But when I became a man, I gave up childish things."
If God wills it, some day that young man will become a husband and have the care and responsibility of leading a family in God's way.
Your response assumes that the young man's father has already learned God's will, and is leading his family in that Godly way.
But if he has not, and is leading them in another way, then it becomes incumbent upon the young man to follow guidance from God first.
Take the case of Jesus and the teachers, for example.
When Jesus went up to Jerusalem with his parents, He stayed with them, but He did not return with them to Bethlehem.
Why? Because, having learned from His Heavenly Father, Jesus was instructing His teachers in the Temple.
Now it is quite possible that He could have been disciplined under the rule that you set forth earlier, but instead His Earthly parents recognized the same wisdom that His teachers did. And so instead of disciplining Jesus for not obeying them and returning to going back home when His Earthly parents did, they marveled at His unexpected wisdom, which was given to Him by God, His heavenly Father, and the Father of us all.
So in that case, following His Heavenly Father was the right choice for Jesus to make.
May God be always with you!