i don't have any idea what is going through her mind - getting into acting by doing porn. Probably only a handful have achieved that. And the girl has one of the best door-openers that you can have. A famous Hollywood-parent.
From what I heard, she was not very close with her father. Maybe, that was why she tried to be famous this way. I totally agree with you that only a handful of people can become famous by doing porn. Well, at least she got her 15 minutes of fame. Nobody is talking about her now.