Every generation has its issues, yes lower house prices but also life lacked a lot of opportunities it does now.
Agree house prices have been a great investment for many people, but equally for many people they haven't been a good investment, or they've had to ride out negative equity, or be constrained to work in jobs or live in locations they didn't really like.
Many people now may have the opportunity to work fully remotely ....this means they can work from a beach somewhere beautiful whilst saving money and progressing career wise.
I'm sure they aren't stressing about not having their names on house deeds somewhere.
Many people prefer renting for the flexibility, only the UK has this ownership obsession.
There actually are ways around the issue - lower cost of living area, buying initially in an "undesirable" area and planning to move, getting a two bedroom and taking a lodger in one room. Using a well paid job as a means to an end to get enough payslips for a mortgage.
Everyone I know who really wanted to buy did....even with zero parental help, they had a plan, it may have taken a few years and some lean years but they did succeed (and not even in high powered jobs either).
(I could have built up a little investment portfolio if I put the time in, but honestly I'd find it boring! So I haven't).
If parents want to help their children out it's their choice, but it really doesn't seem something to stress over.
(I actually know several people who explicitly refused gifted deposits as they just didn't feel comfortable.
And some super affluent families who refused to give anything until their children had got to a certain professional and financial level themselves...they'd always host and feed and pay for education, but nothing beyond that).