If you were in Mia's situation in If I Stay, would you stay?
SPOILERY ANSWER: Mia was at the beginning of her life. She'd lost her family of origin but her future was ahead of her. If I was in such an accident (GOD FORBID) with my husband and kids, I would want to go with my family. They are my future, and with them gone, there's no point. These are the things I have nightmares about, but also the reason that when we are all together on an airplane with bad turbulence, I never get worried because we're all together. (Is that TOTALLY morbid?)