unexpecteditem only read your post not others.
DD has assemblies at her school where a local vicar comes to have a chat, and some of her RE lessons have been about God.
When she first came home and asked me if nanny was an angel in heaven, it took me by surprise and I was slightly taken aback. I even posted here about it i think as she seemed to be very directed by her school to believe in God even though it is not a Faith School.
DD, even now says 'i know you don't believe in God mummy, but I do, ok?' and asks me sometimes what Heaven looks like, what God looks like and says things like how God made everyone and she likes to go to church (christenings etc) and say amen, she likes to thank God for her dinner.
However, in time, I have grown to realise, it is ok. I answer her questions honestly about my own beliefs and make it clear that those teaching her are not wrong, as we don't know the right answers, no-one really does, but they believe their way is true and I don't. I also explain to her that it ok to think different things.
She is growing up in many ways with many different influences around her, this is only a small part and if I don't want her to believe in God, I can show her my way. But ultimately it will be her own decision what path she chooses.
I think, she is very young and naive at the moment and in time she will learn to question even her teachers and those who are not parents. In time, she will learn that it is not right just because someone at school tells her it is. But I am equally sure she will question my views too and learn that mine might not be right for her just because I say it is.
And your little boy is very young and school is such a big thing, but he will continue to be influenced most by his parents and family around him.
What I am trying to say in a long-winded way is don't get hung up on it. When he is older he won't have been indoctrinated into religious ways.