Honestly I don't care about any of that unless they let it negatively affect their life. I don't want to date an alcoholic, a junkie, or someone who is promiscuous. If they drink I don't mind. If they like to smoke I don't mind. If they've had sex with other people before I don't mind.
If they drink to the excess all the time I mind. If they like to toke up every single day, multiple times a day, or if they let it interfere with their normal life I mind. If they have sex with other people once we've been going out for a while I mind, I always make it clear once the relationship is more serious that I want to be exclusive and I expect exclusiveness.
Op, if it really matters, I would look for a good catholic, or similarly religiously inclined, girl.
This sounds right out of /adv/.
Edited to answer your question:
Death God said:
So basically, what I am as is, are there people who didn't illegally drink, smoke or who hadn't had sex during their high school years?
Yes.
I drank, smoked a little pot, and lost my virginity at 15. BUT (and this is a big butt, har har) this was far from the norm. Many people at my school were virgins, didn't drink or smoke, but if they were in a group of peers would never admit it.