I’m not saying that people are immoral for liking some plaid.
Fetishizing school uniforms worn by children gives some serious Steven Tyler vibes. fetish that seems less “natural”
Sure sounds like you are. And you sound also rather judgy about it. Maybe it's just a language thing - but at least that's my impression.
Somebody really passionate about it has to make one and not sell it or make it publicly tradable? Which would be difficult since the market is rather full (I would guess). Also dating can be just a miserable experience if one lacks self esteem and does not fit into societal expectations of desirability - that's not on dating app problem.