I’m 44, and middle class, state educated. My mum worked PT for the council as a payments clerk, my dad died when I was young but worked for a bank before that. Comfortable but definitely less well off than Liz Truss’s parents. I was the first in my family to go to university, for example.
When I was in primary school most people went on holiday to France - usually ferry plus driving. Brittany, south of France, etc. We went to Holland a few times. Some people went to Spain, and presumably flew. We went to Malta when I was 8, which was the first time I’d been in a plane.
In secondary school lots of people went to Italy (remember when pesto and non-deep pan pizza became popular in the early 90s? That was partly down to the River Cafe and partly down to people going to Tuscany etc). We never did Tuscany but we did go to Rome and Naples. Lots of people went to Disney, and some went to New York. I had Jamaican friends who went back to Jamaica during the summer holidays, and a Chinese friend who went back to Hong Kong, but most people weren’t flying long-haul.
I took a year out between sixth form and uni (1995), and I went to Russia and Thailand, my friend went to Mexico and travelled around South America. It was normal to take a gap year and go to those places (we worked in Sainsburys all year to save up, our parents didn’t fund it), but not normal for normal families to go there on a two week holiday as it was too far away and the flights were too expensive.