Say..you're atheist. And one of your closest friends is not. And is in fact...a ..not zealot..but...lets say "Very Faithful" Christian. Or Muslim..or whatever.
You love this friend. And other than her religious beliefs..you get along great. Are bestest friends...so you both decide to name each other as "parents in case something happens to me"
now...if she dies...are you going to be able to honor her wishes and bring that child or those children up as super christians?
OR..say if YOU die..do you think SHE will be able to allow your children to make their own decisions later..without trying to color their decisions?
IS that even possible?
PS it's a hypothetical.