Personally, I don’t get it. Foot rub sounds nice, but like not THAT nice. But I posted on a dermatology sub once and my DM’s blew up asking my gender. Just from dudes though. Are there some women who are perhaps more quietly excited by feet though? Random thought as I sit here grinding off my cracked heels…
“Lehmiller even went as far as breaking down the sexual orientation of his participants, explaining that 18% of heterosexual men have fantasized about feet before, compared to a very small 5% of heterosexual women. Twenty-one percent of gay or bisexual identifying men and 11% of lesbian or bisexual women also shared their experiences with foot-related sexual fantasies.”
Having a fantasy is not quite the same as having a kink but this should give you some idea. My assumption is that most kinks are far less common in women because (on average) women have a lower libido than men.
I’m also guessing that the crowd of people willing to send unsolicited inquiries in response to a photo posted in a medical context is going to skew even more male than the population of people with this kink.
From: https://bigthink.com/health/psychology-of-foot-fetishes/#:~:text=A fetish is a sexual,least once in their lives.
Do you have a cite for “women (on average) have a lower libido than men”?
https://www.psypost.org/2023/02/huge-study-finds-men-have-a-stronger-sex-drive-than-women-68289?amp=1
Based on my reading, this is the consensus view of experts and it has fairly strong evidence supporting it. However, it is not universally accepted and there has been a lesser amount of conflicting research. For an alternative viewpoint, see: https://www.lelo.com/blog/sex-drive-men-vs-women/
Either way, this is a population level trend and there are plenty of exceptions.