What was the old saying? People don't flee jobs, they flee bad managers?

You can run a fast-food franchise, a pub, a hotel or any other front-line enterprise with skill and enjoy extremely loyal employees (at the cost of your profit), or you can run it like a hell on earth by extracting all profit you reasonably can.

For a long time, the latter was the standard model across the hospitality sector, especially as unionization and other forms of worker self-organization were never really present - now with covid haven thoroughly shaken everything up, employers are (finally) forced to up their offers. For a lot of them though, it might be way too late - good riddance.