You saying it like there are no other easy ways to launder money. Every time I walk by a cleaning service or hairdresser in a less dense populated area I wonder if they are involved in money launderinng.
i've seen a a where three barbershops were a stone's throw away from each other, with a few houses between them on a street in an (only moderately dense) residential area with no carparks anywhere nearby, and wondered how that could possibly have arisen (since they'd detract each other's customers, and laundering operations wouldn't make it so blatantly obvious).
and the same occurs with phone(-repair)-and-vape shops in shopping areas (which I guess are somewhat more understandable, since they only require one employee present each and do get footfall, and the cost to rent a shop has imploded since the coronavirus hit the final nail in the town centre's coffin)
You saying it like those areas don't need cleaning or hairdressers.
Undoubtedly! I haven't trusted hairdressers for 20 years. I have no idea why people would need to spend money in such establishments. :P