Your examples are nations though, yes? I have trouble figuring it out myself too, but people who go to marijuana legal places & smoke it there, people who go to prostitution legal places (Which we have here) & do that. I mean, from a legal aspect, what's the difference really? In the case of abortion, I guess you'd just have to make sure they couldn't declare you pregnant in your own state & then be able to declare you not suitably upon return. Keep your state out of it, at all costs, essentially?