At 15 there's going to be leeway in terms of you being held fully responsible for your actions (even if you blithely assure everyone you are the boss). At 19, after those experiences, she still comes across badly, and that's a problem.
You want to expose yourself to risk, you need to see something to work with. You look at her interviews, read the comments, there's little to build with. The same sense of entitlement and lack of self awareness that would've played a big part in her 15 year old self jumping into a theatre she doesn't belong in seems evident, even accounting for the trauma and shock of war. There's a lot of work to be done there.
In terms of risk analysis it's easy, what she could bring to the table is not worth the risk she carries to the rest of the population, not even close. She'll have her rights by law due to her luck of being born in a certain place and that'll play out, but as a pure decision it's easy, keep her out.
