Perhaps for perspective, because 'rich' is relative and I am always surprised how hard it is to forget that every person/class lives in a world of their own.

When I was studying, I had to work to support myself, coming from a working class background. My whole time at the university was like visit mandatory courses, study, work and use weekends to study some more/do classwork. My parents could neither help me financially or with advice.

I meet a study friend from a normal 'middle class' background on the street. He would spent many weekends to do short trips, go sailing, visit family, ... perfectly fine and I am happy he could afford to live like that. During our conversation he mentioned casually, that he was going on a multi week vacation, because 'Sometimes you just need to get out and see something else.'. He didn't mean it in bad faith, I just felt like shit because at that time I haven't had vacation for multiple years.

Now, I am perfectly fine with my friend living a good life. What really gets to me, though, is that for example the middle class takes all their privileges for granted and nowadays you can suddenly read in newspapers discussions, if it is still worth to go work if you cannot even afford to buy your own flat/house. Where I live, working class couldn't afford to buy a flat/house for decades now, but there was never a discussion whether it would still be worth for the working class to work. The discussion is more about how to force the working class to work more for less.