Maybe they're advertising them at such a young age because they know how a lot of people are; people want kittens and not cats, unfortunately, so they may figure that if people see them when they're really young, they'll take them. It is too young to take them away from their mothers but maybe they'll have people look at them and fall in love and tell them that they'll be available for adoption in a few weeks. Not likely but one can hope. I got my Puddy at 5 weeks old but hers was an unusual situation. Her mother rejected her and she had birth defects. Hopefully, all these kittens are healthy.