I would have been upset too, if I had seen such small kittens up for adoption at a pet store and I thought they had to be vet checked, up to date and spayed/neutered before they could even be taken in the pet stores.. That is how it is here anyway..

But having worked at a shelter, we did have one little orangie that was brought in without a Mama... I called her "Wee Bit" because she was so small. She was placed with a Mama cat that was brought in without her kittens who accepted her. She was still at that spread legged stage when she stood up but she was eating like a hog, hard food too, when someone came in to adopt her and the shelter let her go. I was horrified that they let her go so young but I came to realize, in a kill shelter where there is no isolation of the animals that arrive, it is best to get them out of there as fast as possiable in order for them to have a chance of surviving another week.

If someone was so stupid as to take infants away from their Mamma and they could eat on their own.... My thinking is they are better off in the pet store rather than with that person. I would have offered (even insisted) to foster them until they were bigger if I had been there, since as some have said, not everybody knows how to take care of little babies. I would have taken them for at least 2 weeks and made sure they were healthy, eating and able to be on their own.