Gen Z could be making more money inflation-adjusted meaning they can leverage even more of it with credit, I don't think previous generations could lever up their salaries that much for anything other than a house, but now you can do it for a lot of purchases

if you can service the monthly payment you can access a lot of capital, look at the crazy 7 year car loans, buy now pay later deals, pay day loans, and all these fintech apps where younger generations are aping into assets and liquidating when they need cash flow.

Also these generations like Millenial and gen z have given up on buying a home so that capital that would be locked up in a house floods into other things, like experiences, or other consumption items

If gen z is doomed so are the boomers desperate for yield whose investment firms are buying this high interest debt to try and cover shortfalls, they better hope gen z keeps servicing that debt.