Which is why I would never be a landlord unless the rent was 100% paid for by the state and they would pay for all damages the tenants cause. Even upscale people can be slobs.
From what I can remember where I grew up we never really had issues like this. Of course the housing was never a public dormitory.
Just a group of duplexes. I would just send some friends of my cousins over and tell them they’d get 100% of the rent money and all the deposit if they could explain to the squatters that they were never to ever come back.
The funny thing is, they were really happy to leave. Some even left behind extra deposit money.
You rarely see these types of problems except in private property that has owners that don’t live in the neighborhood they rent from. At least that’s what I remember. Of course it’s been decades since I lived in the old neighborhood. So my memory could be fuzzy.