Well, Young Mimitchi and Young Mametchi seem to come from good care, I have never heard of a case they have came from bad care.
Obotchi, Hikotchi and Patapatatchi come usually from good care, but they're maybe a little spoiled with snacks.
Hinatchi seems to come sometimes from good and sometimes from bad care.
Nikatchi, Hashitamatchi, Hinotamatchi and Piroriroritchi seem to come from average or bad care. I've never heard Hinotamatchi coming from good care. They're also maybe a bit of spoiled with snacks.