for me, it is annoying when I return to the U.K.
I like the anti-consumerist nature of the closure, but realistically working people get 2 days off a week, plus evenings... and in the U.K. a lot of the places are closed for the majority of that time. That doesn't make sense to me.
Where I live, working people want to go out with their families (not just to shops, but in general) on their weekends and evenings, so that is exactly when the busiest time for businesses are. My local city center is full of families, children, parents, grandparents etc, on evenings after work and Saturday and Sunday... but quiet during 9-5 Monday through Friday.
I find it very strange that in the UK, aside from Saturday, the main time businesses open, is the exact time the largest group of customers can't go...
People may say "think of the workers!" but, I'd wager there are many, especially students and younger employees, who would love to pick up more hours around their studies/other commitments.