That's a ridiculous statement, many people do. I personally wouldn't, sure, it's an expensive city to live in (I have lived there), but €50k is I think a little above the median salary there. You could easily survive on half that if you needed to, I know many people who do. Not everyone lives in the privileged world of tech salaries, think through all the jobs people do in Paris and think if they're all being paid 50k or more..
There are literally millions of people living with less than 50k in Paris...
Actually, you do, and rather comfortably. (Sources: me, 22k/year after taxes. Or my parents who raised two children in a big flat in paris, both 35k/year)
50k€ is above the 90th percentile. Maybe even the 95th.
I make 1,300 euros a month (net) and live comfortably in the 14th arrondissement.
Yes, you do. Looks like you don't know what you're talking about.