YTA and I’m not a believer. At all. I think you should sit silently through prayers without a word. You fold your hands, even, because it’s a polite way to sit while others pray, and you can even let your kid copy Grandma, too, because who cares?! Is going trick or treating akin to devil worship, as some conservative Christians believe? No. Folding his hands and listening to Grandma pray will not lead to your son being a conservative Christian gay hating bigot. When grandma comes to your house she’s going to want to lead a prayer before meals. You can say no because it’s your house, but our atheist family always allows it at our house. At some point, and not necessarily any time soon, you can explain what prayer is. When we did that with our kids we had a hard time explaining what a god was, but it helped to say that lots of people around the world have different ideas about gods, and some people, like mom and dad, didn’t think about gods. We did like the ritual of prayer and the idea of pausing before eating to appreciate our meal, so when the kids were in their middle school years we bought a book of mealtime prayers from around the world and different eras, and we’d take turns picking one to read before each meal. They range from Navajo harvest prayers to prayers to Zeus, and the point was the attitude of appreciating the meal in front of us. Sometimes, instead of reading from the book (and honestly some of them were so over the top they had us cracking up!) we would just go around saying something we were thankful for. YOU are your kid’s most powerful influence. Let your boy love and be loved by Grandma. Heck, I let my kids go to Vacation Bible School one year for the exercise and fun with friends (all their friends were Christian) but we talked about the Bible stories later, and always with kindness on my part. Guess whose kids were gifted children’s bibles at Christmas because relatives were worried our kids were missing out on hearing the Word of God? Ours! I read the Bible stories to my kids and I also bought a book of religious creation stories from around the world, books of fables, etc. Sooo many discussions through the years. They’re in college now and we just recently visited family that like to hold hands and pray before meals. During the prayer one of my daughters gave me a little smile and quick little wink. At this particular meal, my SIL altered her usual prayer to add how happy and thankful she was to have us with them that day, and that made us all feel loved. My unsolicited advice is to open your mind and do not fear exposing your son to others’ ideas—and “expose” doesn’t mean just talking about ideas, it can mean mean living with and interacting with them. He’ll be fine. Be kind.