We have bar and restaurants, too. People working there have kids, mortgage. I would even say that it’s more a “real” job than in the US.
“Real”, in the sense that, in the US, I’ve seen friends in their 40’s switching industry because they want to have kids. While for instance in France their is actual school you go to before become a waiter in the higher end places. Those are jobs were you are well compensated and that you can expect to keep for a while ( with a promotion path )