Financials now for buying real estate became ridiculous for many places globally. It can be counted from ie how many salaries of similar jobs you need to buy a house in same place before and now. Not exact, but this shows how things skyrocketed due to cheap debt and speculation.
More importantly though, I don't think they were necessarily much happier than us either. "Settling down" essentially meant giving up your life. Nowadays you can go to a geeky renaissance fair and find it packed with all sorts of people with kids of all ages. Same thing with like, anime conventions and whatnot.
I mean, there are regular outrages here over people living frugal - not buying cars, living with parents, generally having less, having massively larger college debt to pay. It is combined with outrage over them not buying this or that subscription someone is pushing. Bycicle transport is cheaper then car and is money saving move for people living at right place too. People watch Netflix rather them going ro movie theater and pay for tickets + popcorn.
They do tons of money saving choices, get blamed for them. And then they get blame for buying anything that did not existed 30 years ago.
There is no epidemic of expensive avocado toasts being bought out in large numbers.
The number of big vacations is similar to our parents (about once in five years). We probably eat in/order from restaurants more than our parents but the high cost of groceries and fact that both parents work means it's not as simple as claiming we are simply not being frugal. We have Netflix and smartphones but these are hardly the reason we can't afford houses.
In terms of adventures, many of my friends' parents had a cabin and boat, and as kids most of our families went on weekend trips skiing, to a lake beach/cabin, camping etc multiple times per year. As middle aged adults now, none of us have cabins and weekend trips might be done 1-2 times per year instead of 5-6 times per year because it's so expensive.
Anyway, it's easy to check inflation and cost of housing vs salaries to verify that the problem is cost of living and wages, not excessive vacationing and avocado eating.
Also note that this website is heavily skewed towards American software developers, so things are generally worse than indicated by the comments here. Even the discussion about remote work is a fairly privileged one, as most workers need to do work at a workplace (factory, warehouse, retail, service, etc).
This is a case of eating out a lot, cutting it entirely and the effect doesn't even cover the amount a typical home has appreciated by in the past five years.
For some people, once per week is not a lot.