> and something I found peculiar is that pretty much all of them seem to be using hard drugs and consume excessive amounts of alcohol on the regular.

Former barkeeper here. The thing is, hospitality in general is an incredibly stressful job, it's not just limited to restaurants, but anything involving hostels, hotels, motels, restaurants, bars, discos or event venues:

- the wages usually suck, although the post-covid crunch has seemed to improve the situation.

- a lot of employers outsource the operational risk on their staff by having customers tip them instead of providing an actual living wage.

- in low-class places, the clientele is just trashy (think needles in the urinals or regular brawls levels of trashy). In higher-class places, the clientele is incredibly entitled. Think of "Karen complaining at Walmart" memes, make it 100x worse, and you get the expectations that customers have. Both can be incredibly exhausting.

- the employment conditions suck, many places are horribly understaffed, shift lengths are insane and breaks are rare. And in places where the designated smoking space for employees and customers is the same, customers usually seem to think that it is okay to order a beer while you're still out for a smoke.

- related to the two above points is anything involving alcohol. Many venues don't have dedicated security, which means you are the one who now either has to drag out a confrontational drunk moron, call the police or keep a crowd of people smoking outside quiet enough that the neighbors don't call the police on you. Not fun.

- anything with gambling present always has the associated side effects: thieves, robbers, people who lost their money and now want to trade their last possessions in the vain hope of winning the jackpot, or people who react aggressively to being out of money. Personally, I've been stolen from, I've been robbed, I've been offered anything from likely-stolen phones over marijuana to blowjobs, and I've seen someone bash in the screen of a one-armed bandit with his head, requiring an EMT and police.

- the equipment is often enough horribly complex (artisanal coffee machines), incredibly brittle to operate or requires excessive amounts of deep cleaning simply to keep it somewhat healthy (McDonald's ice makers). Unfortunately, customers aren't really accepting when stuff is broken down. They want their McFlurry. Like, right now. And they'll scream as long as they want until they get their McFlurry. And you're not allowed to kick these entitled arseholes out.

- moments of actual appreciation (beyond a tip) both by managers and customers are rare. For people who require external validation for their mental health, they are in for a hard time.

- managers are reluctant to give their poorly paid staff the power to eject people from the premises out of a fear of bad Google/Yelp/FB reviews. The results are Karen-meme people.

- Places with kitchens... oh well, these are a nightmare in itself. Everyone is shouting all the time, the machinery is loud, the cooking processes create a lot of noise, heat and smells, the ventilation is more often than not a joke which makes all the issues worse, you have a hard time moving around because everything is cramped, half the machines aren't really designed to be ergonomical, and a lot of stuff is inherently dangerous (sharp knives, pans, fryers, freezers, gas flames).

- The working hours can be a real kick in the nuts. Basically you work when everyone else does not: late in the evening, on weekends, on public holidays, at night. And unlike police, utilities, public transport or EMTs your average hospitality job is not unionized, which means employers get away with a lot of insanities: double shifts, day-evening-night-day-evening-night rotations that completely wreck with your sleep schedule, manipulated time sheets to avoid trouble when the authorities come to inspect, no healthcare or other benefits...

The result of all that stress is that people have to cope with it. And most do that by drugs. Some like me smoke, some drink, some use cocaine or similar stuff simply to have enough energy to make it through the shift. And some turn to sex, the industry is fucking like rabbits.