Appropriate age gaps?

Is it wrong that I am 17 yet only seem to be attracted to men a lot older? I prefer any of my teachers over class mates and whenever I find myself checking someone out i realise they are way older then me, I think i forget i am only 17 when i consider asking for 35yr olds number. Problem is no one im interested in is "age appropraite" for me. Just wondering about similar experiences/feelings, and if this is normal or not? X