Most Helpful Guy
-> guys have higher standards for relationships than sex. So any guy who is ethically okay with casual sex, there are many more women he'd sleep with, then date. Because of that, pretty much every woman out there, many more men would sleep with you, then date you. Just how it is.
-> guys who want relationships tend to move more slowly, get to know girls and approach fewer girls. They also have higher standards. They are also often IN relationships, and off the dating market. Guys who just do hook ups are never off the market, and always trying. So a 'relationship' type guy may ask out 1-3 girls each time he's single, then be off the market for a year. Hookup type guys will hit on a few girls a week... or day. Add this up and girls will get sex offers FAR more than dating offers. Doesn't mean that's all that all guys want, just the nature of hookup guys. It's sort of like most phone calls I get are from telemarketers. This doesn't mean most people are telemarketers though - its that telemarketers phone people all day long.
-> whether a guy wants sex only or a sexual relationship, he's going to bounce if you're not sexually interested in him. Some guys your age are shy and will move from being friends to asking out and hoping sexual stuff shows up later though they will totally wait until you are ready. As you age, less guys are like that. If they're asking for sex without dating they probably just want sex and you're fine without them. If they're hinting about sex early, instead of just shutting it down, you might want to be really clear that you also get horny, and if only you had a boyfriend you were comfortable with to maul... (if that's true).
Most Helpful Girl
Where do you meet the guys you're talking about? If you're meeting them at clubs/bars, then I see why they are only interested in hooking up.