I mean, the cost of literally everything has gone up, and admittedly wages haven't kept pace so non-essentials will feel more expensive, as we know they're optional AND beat ourselves up about it. But as PPs have said, snack-buying at the cinema is a mugs game!
Where we live, we can still go out for a low-key meal (Indian, local pub or similar) for around £20 each for food plus 1-2 drinks, but that would probably be one course only, really. Our nicer restaurants are definitely be closer to £30-40 per head though, and although they're worth it, that means I only go to those maybe 2-3 times a year.
Fish and chips here is about £8-9 per person, but we do our own mushy peas and bread 😁
I coul still go to the pub for less than £20 a night but obviously that's be 3 alcoholic drinks max, plus a soft drink or two. I'm not a massive drinker though, so I could get away with that. Our local Spoons is reasonably classy though, so a lot of people go there for dinner and a drink for less than a tenner, and you can see why. Lots of our local pubs have free music nights, and pub quizzes, although you normally have to pay a small entry fee.
Other than that we have a local arts centre that does film nights, tickets £7.
I guess it depends to an extent whether you socialise with drinkers and/or people who don't want to stay in. You could easily have a pizza and film night at home with plenty of snacks and hot choc etc for £5 pp, but the costs do shoot up with alcohol.