Status Updates From Such a Bad Influence

She either doesn't because Evie knew she would be devastated losing income, or she begrudgingly agreed.Possibly Evie throwing out the idea if she disappeared, her mom would be flocked with attention. Even though in reality it would die out at some point. But maybe the audience her mom already has would continue to support her.

I think either the boyfriend isn't a total douche bag and helped.. or Evie found out he was sleeping with her best friend Ashlyn.
If the mom knows about Evie's plan: I'm still on the fence.

Ok, I'm right after the search party and in the middle of a flashback where Evie is asking Rachel not to post a picture Rachel took.

I now think that Evie was tired of being under a microscope and wanted to vanish. Change identity, everything.