You have a very simplistic view of this. This is looking at why people are living more frugally? If people want to buy less/travel less, then that is no proble

You have a very simplistic view of this. This is looking at why people are living more frugally? If people want to buy less/travel less, then that is no problem. If they are doing it because they are worried about the future, that is a problem. Spending has an effect on not just those people, but on all of society when it happens at a large enough level. And it is one of the common way to pass money from old to young.