So, I'm going to come to their defence a bit here. Most of this is also covered in my comment I made further into the thread.

I don't think previous generations were any less financially literate on average. You've always had those careful with credit and those that didn't seem to care, or didn't understand the ramifications of their decisions.

I grew up in the 80s and 90s and most large stores had their own store credit system with 30%+ APR rates. Plenty of people that were boomers or gen X had those accounts, and would routinely buy more whenever they cleared their credit a little.

You could also get credit cards and each card in terms of spending power would have similar limits to what you have now. And there was no shortage of people that would be sitting on their credit limit all the time. I knew people in the 90s that had no idea how interest worked and would be sitting on their credit limit paying back mostly interest all the time.

I think the difference is the ease with which you can gain access to credit now.

In the 80s and 90s you generally needed to go into the store to get their credit. You needed to go to a bank or fill in paperwork in the post to get credit cards. Crucially here, generally there were less providers of credit. Credit cards were often offered by banks, there were not so many resellers of credit. To gain a line of credit you had no chance to ever repay took more effort and as such wasn't so much of a problem as it is now. It was still a problem, and companies routinely made money from the financially illiterate, even then.

What I think is different now, is that you can get credit from a few screen swipes on your phone now. There's many many more providers of credit too. As such, the ability to get into an irreversible credit position is much easier. I would put money down that the same people with £1000s in various store credit/cards all compounding interest at 30%+ in the 90s, would also be in huge debt if credit were as easy to get then, as it is now.

I am going to blame financial institutions more here (those getting into the mess are not entirely free of blame). There might be over a thousand sources of credit now, but they all funnel up to a handful of large finance institutions, and they're the ones really burying their head in the sand pretending they don't know this is happening and couldn't do anything to stop it. They most certainly could prevent it, if they wanted to. It just works better for them to have a generation that is constantly paying interest on never repayable debt. Even factoring in the few that will be written off.

Yes, ultimately we all have our own responsibility not to get into these situations. But I don't think Gen Z or any generation are or were better at this on average. It's just the conditions that allow it have changed, and continue to change.