I kind of see what the OP is saying though. Without information there can be no informed choice.
Most of us will bring our children up to understand there are different points of view, and most of us will imply that those other points of view are not correct - regardless of whether we are Christian, Muslim, Jewish, Atheist etc.
I was brought up in a loosley atheist household - my parents never discussed religion at all and we never went to any religious ceremonies except weddings and funerals. I went to a CofE primary where I learnt that being a christian was all about who got to hold the sheafs of wheat at the harvest festival assembly, and whether you should wear a hat in church or not. I had some orthodox jewish friends at senior school from whom i learnt that you had to be born jewish to be a "proper" jew, and that mostly it was all about going home early on a friday in winter and not eating anything that wasn't definitely Kosher. I now live in a mostly Muslim area and still know only a little about Islam - on the surface it seems to be about having a beard and a small white hat (if you're a man) or wearing a headscarf (if you're a woman).
I don't think any of this was real information about what people actually believe and why - and none of it allowed me to make my own choice.
As an adult i've become a christian, after becoming interested in why one of my friends was so different to everyone else, investigating, reading around a bit and considering what I thought the facts were 2000 years ago, based on the written evidence to hand. I've read some Dawkins, i've spoken in depth to a Hindu friend and i've learnt a little bit about Islam but would like to know more.
I really feel that my childhood did not allow me an informed choice, and i'd have liked to understand more about major world religions from people who are involved in those. I'd love to see vicars, imans, rabbis, etc going into secondary schools and explaining the basics to young adults who are emotionally mature enough to understand different people believe different things and because your parents think one thing does not make it right.
Very hard subject though - as a follower of Jesus I think the most important decision my son can ever take is whether he wants to follow Him or not - but it needs to be his decision. I hope I can gather enough friends of different faiths or no faith to explain their views to him and give him a real choice though.