I have a 9 month old old female kitten at home and I'm thinking about adopting another one, so they could keep company. I went to a shelter yesterday and saw a 9 weeks old kitten, she's very playful, and seems to be healthy. I asked the shelter staff about her background, but they seem to know very littler about her. My question is, is 9 weeks old too young to leave the mom cat? and thus have some sort of problem like not learning how to cover her business in the litter box properly? If that's the case, would I be able to teach her? or would she stay like that forever?