There is a guy on YouTube that runs a channel called "I will teach you to be rich". Part of his content is like a call-in radio show, where people share their trainwreck expenses. It is unbelievable how people spend their money. And these are people frequently earning over 200K USD per year. If you watch more than a few episodes they all sound the same, and it is very hard to have any sympathy for their wasteful spending habits. When confronted by the host about various line items in their shared budget, the guests (invariably!) have unlimited excuses why this or that cannot be cut. Most people that I know that are earning more than 50% above median income are incredibly wasteful spenders. Most of them are in for a huge shock in their 50s when thinking about retirement.

Maybe not any income level. Well, you can buy Twitter I suppose. But, yes, you can fly Netjets or whatever, buy supercars, have a bunch of personal staff, and eat out at Michelin-starred restaurants on a regular basis. And burn through certainly multiple $100Ks or even 6 figures annually pretty quickly.

It's called lifestyle creep. Housing and transportation are the two most impactful items, which can scale from $20k/yr to $20m/yr smoothly.