That is what she gets for having weak boundaries tho. And it is a thing that if you have seen, you will actively teach your kids to avoid - by saying no soom enough.
Teenage girls have a difficult time, saying no, and teenage boys have a difficult time, accepting "no." It sucks, but that's human nature. Being a teenager is clabbered misery.
I suspect that what they do, is have a hunk show up a couple of hours early, with a bottle of tequila.