He can sometimes be mean to toddlers, but the children have to try and communicate first. The toddlers can talk, tell goofy jokes, ask to be picked up, but he can't seem to play or read stories with them. I noticed he pulls out a book like is going to read a story but he puts the book away instead.
But sometimes he'll autonomously be mean to them. I just wish he'd stop eating all the group meals she makes because there's so many kids. I made a typo earlier, she has 5 Greglets, (2 weres, 3 wer-casters hybrids) and she has one more baby by someone else. So she does have 6 kids, but 5 of them are Greg's. I was just not expecting the spellcaster babies to be hybrids because that is a problem. I know there is a mod for that but it hasn't been updated for werewolves. However, I should be able to easily remove the spellcaster occult with it. It still functions, it just doesn't support were-hybrids right now. The ones that were born as werewolves are not hybrids but all the spellcaster babies are hybrid weres.