That is all so very true. Drew needs to call Jeff as soon as Amara is settled. It was very irresponsible of Jeff to simply allow them to walk away. Technically they had the right to, as they are both legally adults. for Amara it isn't a problem because he'd been discharged anyway so he could have left at any time. However, the fact that Aria disappeared could have caused a problem, depending on who is down as his next of kin. Because he isn't able to make decisions for himself it's down to his next of kin to make them for him, so if Mamma is next of kin and she says Aria should be admitted, then unless Aria is able to say no Amara has no legal standing and might find himself in trouble as would anyone else aiding and abetting him.
Hopefully, it won't come to that.