I feel like I do a bad job explaining what I mean when I say I think Liam is the Mom friend of the Dromies. Because I don't mean that I think he's wise beyond his years or that he's super responsible. But I do think that he'd have a bunch of Mom-like tendencies.
He'll be the one saying shit like "What's the magic word?" in order to get Drew to actually say please and thank you, or sternly asking "Did you wash your hands?" before giving Henry any food (this is justified; Henry usually has not washed his hands). He'll always remember to bring sunscreen, bug spray, etc. everywhere because he knows the other two are never going to remember to bring it but will be extremely annoying and complain about bug bites or sunburns afterwards.
I think of it like this: Drew is smart academically, and Henry is smart via knowing a bunch of random shit that sounds useless but can be very helpful in a surprising number of scenarios. But both have a complete lack of any common sense or awareness of other people, which Liam, luckily, provides. Otherwise, the other two would probably be dead by now. He doesn't have the emotional intelligence of an adult, or very much social prowess. But he'll always be looking out for their well-being, he'll listen to them whenever they need to vent about something, he'll remember the randomest details about them that they only told him once, like their favorite candy or their drink orders. He's just caring and attentive in a way I can't quite describe without using the term "Mom friend", even if that's not exactly what I mean.
