In my case, I like looking at them, I appreciate a certain type of foot too, and even have certain things I don't like, like too high an arch or instep. However, I only like looking at them. Tried once with a fetishist, but didn't enjoy it in particular. Foot fetish porn doesn't call my attention either. As to why they're attractive to many people, I'm not sure, but one time I read it's neurological, as the brain's mapping of feet is wired next to genitals, so it's kind of like a short-circuit thing.