Is it normal that i buy used shoes from women?

I have a fetish for women's shoes, which I think is a common fetish. But I've been taking it to the next level by actually buying old shoes from women. I'll use apps like Letgo and Offerup, find some obviously well worn shoes, check to see if they have a pic in their profile, and contact them. I'll tell them upfront I'm a guy, and it's never an issue for them. Then we will actually meet in a public place, I'll give her the money, she gives me the shoes, and it's like no big deal. This happens every time. I thought women would find this super sketchy, but apparently not. So maybe this is normal?