I'm old enough to get married, but I don't plan to be anytime soon. Unless of course a situation like Celeste brought up, where my GF felt it necessary for her. TBH though, it wouldn't be hard to convince me - you get a tax break when you're married right?
As far as abstinence, and some of the religious views that go along with that, if they're not throwing it in my face by telling me how much better their system is than mine, I honestly don't care.
Decisions that deal with, and only affect the personal, should be left to an individual, not society. Once that decision forces people that don't want to be involved, to be involved, that's when society has to step in - hence my feelings on the majority of censorship.