Not sure on the middle / upper middle thing.
Think possibly it should be upper working class and middle class, instead?
Anyway, my own situation.
Parents were aspirational working class. Both studied at night school for qualifications.
Dad had a good and interesting career which involved him working away a fair bit.
Mum worked as a TA in a school for a) the holidays, as we didn't have family who could help and b) it was a private school and she got half price fees for my younger brother and I.
They bought "the worst house" on the best street in order to live in a nice area and they spent years renovating. It was very cold and damp for many years.
We did go on a lot of holidays although maybe not multiple a year. We went to France and Spain and the canaries a lot, also multiple trips to Florida and Canada.
2 cars.
As I say, private schooling due to reduced fees.
We never ate out, that wasn't really a thing. Also, no takeaways.
I didn't have nice clothes, I wore my cousins hand me downs mostly. With the rise of Primark, I began to get my own, new clothes, but in the teenage years I never had anything cool or branded until I had a job and could buy it myself.
If I wanted to do an extra curricular, they would pay for that. They paid for driving lessons etc.
Mum and dad's clothes are all Primark and supermarket. They count the pennies when buying anything (food shopping etc). They still enjoy holidays, but always budget accommodation etc.
Their house is now warm and comfortable and worth around £600k.
Me, I've felt the pressure to provide similar (or better) for my kids. Particularly due to the private schooling.
I floundered a bit after uni, and jumped from job to job a bit. It was stressful. Happy in my professional job now and I have bought a house in the town next to my parents. Very similar house but a bit bigger. But needs a lot of work. They bought their house at age 27. I bought mine 3 years ago at age 40. So I have a much higher mortgage than they will ever have had. I also will never be able to afford private school.
We do have lots of holidays but they are all cheap and cheerful. We couldn't afford Canada or America.
We eat out loads more than they ever did...but I think that's just a generational thing.
However, in my case, in the 80s/90s, private school, holidays to Canada and America as well as Europe, detached 4 bed house, some people on here would be thinking upper middle class
But definitely not.
Because class is about more than money. My parents were very much working class who did very well for themselves. But my upbringing was not upper middle class, despite the school etc. school
Was only from age 13 for me. So I didn't learn an instrument or anything. My state primary school didn't offer anything like that. The lifestyles of my school peers were wildly different from mine.
As for my kids....I think they are probably growing up more middle class than I did. But I'm not sure, hard to tell, isn't it?
(Caveat to say I don't actually care what class they are growing up. Just want them to be happy and have opportunities. Just musing on the class thing.)