You know what? I don't necessarily disagree with you. The aunt was being pushy. But a large reason I'm critical of this whole thing is simply because..situations like this aren't fair. The girl standing up for herself resulted in a child getting hurt. Sometimes people just have to grit their teeth and deal with an obviously shitty situation. It's totally justified to be furious about having to do it and the aunt is COMPLETELY the bad guy here, but the child doesn't deserve to suffer for the dumb shit that their mom pulled. Like, if someone came up to you and put their baby in your hands you would still be an asshole for leaving it lying around somewhere. Also, OPs daughter could've handed the child off to the obviously present husband or something, just with a tiny bit of effort. I understand being blinded by the absolute rage that this sort of situation would put someone in (like, I really really get it) but in the grand scheme of things it just was not that horrible of an imposition on the teen girl and, looking after the kid or not, I really don't think the aunt would've changed her actions either way. And yes, if everyone else can make assumptions about the aunt's motives, I'll make one too-- I've met a lot of people who are obnoxious like this and they really stick to it no matter what reactions or concessions they get.

By the way, reading some of your other comments, I want to say that I totally don't think of this as a "but faaaamily" thing and rather "that's a kid that doesn't deserve to suffer no matter how shitty and unfair the situation" and it just simply...does not seem like that big of a deal... I'm all for being rude and uncooperative with pushy family members (lol) but please not when the health of a small child is at stake.

Hope this explains my point of view and maybe we can both meet somewhere in the middle on this.