Would you allow someone of different faith/beliefs influence your child?

My husband and I are not religious in the least. In fact, let's just say we don't believe in god. Or gods. Or devils. Or anything.  Our families are extreme Southern Baptists (yay). I am afraid that our families will take our children to church or give them religious books or literature or just flat out try to witness to them. We want our children to decide for themselves when they get old enough to understand what religion is all about. What do you think?