There's probably a lot more interesting info hiding behind that statement. If housing is massively unaffordable (as it in the UK), social mobility is rather low, why go out there and destroy yourself in low wage jobs?
Not saying there's no spoiled youth waiting for their lottery ticket that will never come, but there's a rational aspect to it as well.
Namely that if you want apprentices or interns, you need older apprentices/interns who will vouch for you — who will say you that don't treat the kids as shit. Too many people treat any low-paid junior badly.
Reality: The criteria that hiring portals use to silently trash applications is hidden inside black boxes but includes 1st Time Job Applicants, the most minor of criminal records and select postal codes.
Only rarities like software can seriously get that on a first job.