I have a friend who is in his late 70's, who buys the same model car every 5 yrs. As soon as he is about to pay one off, he buys the new version of the same model. Considering the low mileage and excellent condition of the vehicle and the high cost of buying new every 5 yrs, I asked him why he does this. He said that he simply likes having a new car every 5 yrs. Keep in mind that he still has to work to finance his "lifestyle." This seems crazy to me, but it's his life and who am I to judge his life choices?
As for the economy, I suspect we will experience another big market correction before mid 2021. The fed has been printing money, handing out baliouts, forcing interest rates down to historic lows and generally keeping the machine running along, but it seems unlikely they will be able to keep it going indefinitely. As the effects of Covid continue and covid related reliefs suspend, the inevitable consequences will play out. Unemployment numbers will rise. We will see auto and home loan defaults start piling up. Zombie businesses will fail and many of the small businesses who have been struggling will have to give it up. The real estate market will stall and start to correct. Real estate doesn't drop like the stock market, so it will likely take years to bottom out. Inflation will creep in and recovery will take much longer than recent corrections. I don't think we will see a total collapse or rioting in the streets, but I do think we will have a longer term recession coming our way.
Since I have been unable to predict the future in the past and I may or may not be correct this time around, I don't intend to change my investment allocations. There has been no shortage of "experts" on Youtube predicting the next big recession/depression for the past 4-5 yrs. Regardless of what is in our near future, I doubt you will see much difference in the social norms of excessive borrowing and spending.