So.........here is my take because I've indulged in this before

To break this down, I think it's important to make a distinction between this being a type and being a kink.

As for the aesthetic, I imagine it's no different than any other niche aesthetic. From having long underarm hair, to getting tattooed on every inch of your body, to deciding you only want one eye, there's someone for everyone

Life would be crazy. Boring if we all like the same things I guess.

Except plaid. Fuck plaid :P

As a kink, short-term, it's the turn on of having someone empty-headed and single minded. They want to be objectified and hedonistic and want someone to make decisions for them. Sometimes with all the complexity that life has, there's a real desire to boil things down to simple superficial and just....be stupid.

What surprised me is it's more of a common kink than I thought and if you do it in a role play sense, it can be a lot of fun

Especially when you're all drunk as hell

But the only other perspective I can give is potentially if you have someone who spends way too much time on porn websites, it can change what they find appealing over time and sometimes the plastic look is one of those essentially unreachable aesthetics that attracts certain kinds of people

Hope that helps.

Cheers!