I think it was stated that she was under the care of someone he trusted and I don't think he has tha capacity to care for a child when he himself is a patient in need of treatment
So yeh its the case of a kettle calling a pot black
lol he may trust them but not checking on her when he is awake is kinda crazy.
I don’t think it’s someone he trusts per say. I’m fairly certain it was explained that the main family realized she had talent and took her to train her and because he’s a narcoleptic he had no say in the matter he probably figured that she’d be safer with them, but I don’t necessarily think that he was the one that asked them to take her. And the main family absolutely did not take her to “ save her “ they took her because they wanted her abilities. Which begs the question of how they’re actually treating her and the fact that we know in the past life she went missing, makes me concerned.
But also your own daughter is being taken care of by someone else soooooo maybe go get her back before throwing shade on your brother. Preferably before she goes missing like in the past life.