I am adopting 2 kittens. They are 6 weeks old and have begun eating some kitten food in addition to mother's milk. When can we take the kittens from the mother? The mother is an indoor/outdoor kitty and is not litter trained. How do I train the kittens to use the litter box? I plan to keep them indoors and don't want to take them from the mother too soon and am concerned that they won't know how to use the litterbox.