Every generation has a better standard of life than their parents in terms of luxuries though.
My parents had more luxuries than their parents, I had more than mine, and my kids have certainly had more luxuries than I did throughout their childhoods - although I doubt they will have the same amount of luxuries as young adults, that I had, without significant help from us.
However, in terms of the big, life changing opportunities, young people today absolutely do not have a better standard of living than their parents and grandparents. Again, not as individuals but as a society.
Things that the current generation don't have that previous generations did:
Affordable, publicly owned utilities
Abundant social housing
House prices that were within 3.5 times a single income
A cost of living which made it possible to raise a family on one income
Enough school places for children to attend their local schools
Decent youth services (in the 80's and 90's at least)
Fee free university and grants
Better job availability with apprenticeships for people who couldn't / didn't want to follow the academic route.
A robust manufacturing industry which meant that apprenticeships usually led to secure jobs.
That manufacturing industry also meant that people generally had jobs for life and weren't having to have 2, 3 or 4 careers in their lifetime
Retirement at 60 and 65
Cheap and available public transport
Easily available driving tests, cheaper fuel, cheaper insurance for new drivers
All of the above meant that people did not have to move miles away from their family and friends to find work or affordable housing. They kept access to their network and multiple generations living and working in the same areas meant that there was more a sense of community which ensured the most vulnerable were looked after.
Young kids could happily go off exploring all day with their mates because that sense of community kept them safe.
There there was:
Free dentistry
Free prescriptions
Easily available GP appointments and GPs that would do house calls
Hospital appointments that you did not have to wait two years for
A genuinely free press which was prepared to hold the government to account and no poisonous social media to create false division and encourage tribalism.
***
The latest smart phone, gaming consoles, an annual holiday to Spain or Greece, TV streaming and a Starbucks three times a week doesn't make up for the loss of all of that ^^ and no scrimping, saving, giving up avocado toast or living a sack cloth and ashes life will bring any of it back