Wanting a new car all the time is the expensive decision, not leasing, which is merely a manifestation of that decision.
As someone who drives a ten-year-old car that probably has several good years left, I completely understand why someone would not want my boring life. This is the fallacy of people who recount stories of the “millionaire next door” who has high net worth. Many people do not really want wealth. They want to consume a lot: travel, new cars, restaurants, clothes.