I think that's a completely different matter-
Dude's got imprisoned to fight underground, got home unconscious and has bruises on his neck-
Sister has every right to worry, even if he's already in highschool lmao. Highschool students aren't exactly that independent y'know. Besides, it's not like "trusting" would really ward him from any harm, realistically speaking.
I completely agree with you. It ain't like that she's being overprotective but just doing her business as an elder sister and guardian. I'm glad that the sister isn't completely chill about this like, "Heh, my brother is missing, nvm. He'll come back" and there is that also reason why she will listen to that school nurse because he is an adult and teacher of those two students. Also, the brother got already involved and there is no other choice either. I mean, it will be a breather if you know someone who cares about your brother. Rather, criticize Will's father, not the sister.
I literally CANNOT stand the sister. She can’t trust her fucking brother but she can trust a man she barely knows?? Piss off!!!