Turns out after accounting for costs Uber drivers MIGHT even make less than minimum wage https://www.npr.org/sections/thetwo-way/2018/03/02/590168381...

And why "Uber?" Cuz it's cool? Why not "Starbucks barista" or "shelf stocker?" Because what we're really talking about is "work more" I guess "part time job" doesn't sound as hip as it used to...

Flexibility and "being your own boss" (deciding when you're going to drive by yourself, not with some kind of manager) is important to a lot of people.

Is that actually a suggestion? If you make an upper middle class salary (like a programmer does) and reasonably control your expenses, I think you only are going to miss making retirement if you have an expensive medical disaster or you invest too heavily in the market then sell during a crash to make rent, or some weird thing like that. I'm not sure if $20000 is going to make your difference