Charli basically gets along with everyone, really, so even though she's in the year above Evie (she's going to college this year) she'd have been all over hanging out at the Steiner house! Her parents died about 6 years ago, so she'd probably also adore being able to talk to a mom figure; not that she doesn't appreciate her adoptive mom, it's just she's always aware (as stupid as it may be) that it wasn't completely her choice to be looking after her.