I just now RTFM and realised this is not at all the case. By now I have put back in squinge´s breastfeeding hack, which would stop this behaviour if it is caused by low social, as breastfeeding increases social. Maybe bathing does, too? At least it does so for toddlers. I hardly ever bath my babies.
I never pulled the breastfeeding hack from my game but still found that my babies were extremely fussy (mimicing real life
). By playing with the babies before they ate and also laying them on the floor after eating, they have done much better. I'll have to try bathing, I guess.