Can't speak for UK cinemas but Canadian cinemas are thriving. The cinemas here all have full parking lots every night and they've improved the snacking experience by bringing in known franchises such as Pizza Pizza, Baskin & Robbins and Subways (marked up quite a bit).
The tickets are fairly modest as far as prices go. They have also introduced fancier seats at a premium which are roomier and recline.
I go the movies occasionally but every time I pass the cinemas in my area I can see that they are still drawing crowds.
You can also subscribe to a streaming service from the cinema which shows quite recent releases all from the comfort of your armchair.
My local cinema complex charged exorbitant prices for confectionery, snacks and drinks. Add to that the fact that you invariably have a long wait at the understaffed counter, and you are left with a negative feeling about the business.
When you get into one of the seven screening areas things look up - seats are comfortable, and the sound system is superb.
FE - The main reason for going to the cinema is the sound experience. No matter what set-up you have at home you don't have space for reproduction that the cinema has. Careful searching almost always reveals a way to get cheaper tickets but even OAP's don't get a discount on the confectionary etc. Take your own seems to be the only answer to that.
took grandson to cinema - running late so while wife went for ickets I went for popcorn.
Wife got to ticket booth and found they had just sold last ticket, a quick search on the phone found another cinema showing same film a few miles away so we went there to watch the film eating the popcorn bought from the first cinema.