I went to Catholic school and recently saw like eight former classmates at a friend’s wedding. The bride is Catholic, but none of the rest of us are. I was an out atheist in school, but the rest of them were ostensibly religious then (~15 years ago). Half of us are now queer and fucking nobody supports jd Vance. Even the catholic one isn’t a religious fanatic. She keeps her faith mostly private and married a divorced father.
This kid will probably also become less religious over time (or suddenly). I think Catholicism is a little easier to break free from than Lutheranism or Episcopalianism, because of transubstantiation. Once he realizes that people expect him to literally think the host is Jesus’ actual, real, material flesh, it’s kind of hard to believe it.
I stopped believing in god at four years old because I realized everyone else in my Sunday school class believed the story about Jonah and the whale. Catholics often give the Old Testament a little wiggle room, but transubstantiation is absolutely core to Catholicism.
People who live with people with compromised immune systems and take great care not to spread germs can absolutely avoid catching colds for decades.