there is nothing hurting there ... you are right to some point if both of them would agree that religion won't be an issue. But my question is ... The kids will follow whom? The father's religion or the mother's religion? You knwo that they can't follow both ... would be a great disturbance to them at an early age ...

Do not dwell in the past, do not dream of the future, concentrate the mind on the present moment. (Gautama Buddha)