There's nothing to get. You don't explain fetishes. This is like asking "Why are some people attracted to people of the same sex?"
I have a foot fetish and I'm not ashamed to admit so.
I personally don't care for feet. but i know a ton of ppl who do. I respect all fetishes tho, thats why I keep all my body looking fine, fresh and fierce.
LOL
It's one of the most common fetishes and it's harmless really, it's just another body part. I wouldn't mind a partner with this fetish especially when it would probably mean constant foot massages for me