People went less often and were happier to accept cheaper ways of doing things, that a lot of people write off as miserly or grim these days, such as packed lunches, walking part of the way to avoid paying more on the bus.
We went to the city museums and parks a lot because they were free. We had one annual holiday and went on the 'club trip' once or twice a year, which was the coast or a zoo, this was subsidised/fund raised for, or local businesses donated towards the cost. I remember once, we went on a coach trip to a biggish attraction, Alton Towers or similar, and M&S donated the packed lunches from what was unsold on Saturday, when they didn't open on Sunday. This was a huge novelty to us, we talked about it for months as we'd never had M&S sandwiches before, which sounds ridiculous now, but that was the times then (early 1980s).
Plus people spent less on other things like eating out (we never went to restaurants and only ever went to cafes during self catering holidays, McDonalds and the like didn't exist and takeaways like Chinese or fish and chips were very occasional treats, as were fizzy drinks, crisps etc, again only on holidays or at Christmas/birthday parties.
So might have had more spare money for bigger, less frequent days out because they were spending less on day to day non essentials that many people see as normal these days.