Aye because jobs for (generally) unskilled workers and students are in abundance and they can walk out of one job straight into another no bother!
For those who have worked all their days in the pub trade it’s really difficult to move jobs. The U.K. pub trade that has been in massive decline over the last 15 years (in 2006 there were 58.2 pubs per 1,000 population, and this has reduced to 47.6 in 2018).
You can treat your staff like ***** whilst still operating within the law. There’s plenty that you can do that’s legal but morally questionable.
I would think that getting rid of a large number of staff when you’ve reported profits of £102M in your last financial year, and there is a government furlough scheme that will cover 80% of all salaries below £30k p.a, then responding with “get a job at Tesco” would trump any articles or employment tribunals I can find through Google.
Besides, most constructive dismissal cases etc will be the fault of bar managers etc taking a dislike to staff members rather than the actions of head office. There won’t be any court cases about the bars being short staffed, being under pressure to sell more of a particular product etc etc.