Re: If you have a boy and a girl
at 2 i would stop bathing them but i dont have kids, though i have two cousins one male one female both are 2 yrs old and they know pretty much everything going on around them. the boy who is 2.5 yrs old knows english and talks soo i wouldnt be bathing the kids togehter after 2.
separate rooms, if circumstances allow then from the beginning, otherwise around age 7