Is it just me, or are DIY Carwash places and, more specifically, car vacuums relatively rare in Houston?

Maybe it’s just an inner loop thing, but while there seems to be a TON of carwash/detailing services, almost none of them are of the self service variety.

But what’s more perplexing to me is the lack of car vacuums. I moved here a few years back from Florida, and every single gas station had a coin operated vacuum to keep your car tidy. It seems like these just aren’t a thing at gas stations here?