I think we all did (and do) what our peers do. No, we didn't have 'the latest' mobile phone or carry expensive coffee around, because those things weren't available to us. Younger generations don't have shampoo and sets on Fridays like my mother's generation did. We may have Netflix, but previous generations had numerous cheap cinemas, and so on.
It's not virtuous to have 'done without' things that didn't exist, and it's not sinful to enjoy things that previous generations didn't have.
I think there was a brief period in the 60s when social mobility was a possibility for some. Grammar schools and university expansion gave some an opportunity to go to university when having a degree set them apart, and they didn't pay for any of it. Most went to secondary moderns, however, and many left grammar schools at 15/16 with few qualifications, however, and university wasn't an option for people whose families needed them to earn money.
By the 70s comprehensives came in, then as universities expanded again, degrees didn't give the passport to a good career than they used to, and student loans are a huge encumbrance for many, so things have moved back when it comes to social mobility.
The fact that so many have degrees, despite the fact that that they don't guarantee anything, means that those without find it even harder to get a career, rather than a job, so young people (understandably) want to get one, and to have the rite of passage of being away from home to grow up. They do what their friends do, just as we all did in our different ways at different times.