Is my "look" preventing me from getting a date?

Here's my dilemma. I'm always told that I'm very cute and nice, but I am 22 and have never been on a date because I never get asked out. Is it possible it's because I'm too nice? Is that a turn off? Because I always get that "awww" look from guys as if I were a cute little girl, even if they're younger than me. Plus people always say I just look really innocent, which admitedly I kind of am. But could this be what's preventing guys from approaching me in that way? I always get that I'm "cute" but not "hot". Am I just not interesting enough or what?