This thread has me thinking that it could be fascinating to see what happens when an average person wins the lottery. Like, I'm surprised Netflix hasn't put out a show like this yet -- find someone who just won a giant Powerball jackpot, and send in cameras to record their thought processes and decisions on what to buy.
I've seen many shows that explore exactly this over the years, the outcomes are never good. Of course, there's sampling bias because the shows are looking to profile the lottery winners who ended up with nothing.
Although it's been long "common knowledge" that lottery winners end up broke, with a common stat being that 70% end up bankrupt within a few years, this stat is actually entirely made up.
It's not well researched and "lottery winner" is a huge category to study ranging from folks who win the equivalent of half their annual salary to folks who win 8-9 figures.
But a quick Google and scan of articles shows that research from Europe, where winnings tend to be modest, work out just fine because people stay in their jobs and generally just continue on whatever path they were on financially.
In the same theme, winning the lottery doesn't change people's projected financial outcomes. If they were on the path to bankruptcy before winning, that outcome just gets delayed.
Again, a lot of these findings are for relatively modest winnings because the vast majority of lottery winners, the prizes aren't "retire forever" levels of money. Where I live, the average lottery winner is getting 42K, that's less than half of the average inheritance.
These are virtually meaningless averages, but my point is that most of the data out there isn't about the impacts of huge, life-altering sums.
But if you look to "sudden wealth syndrome" you might find more specific info on people who specifically gain large sums of money quickly.