> Why choose being a service worker in gastronomy

The tipping money often exceeds the wage, from what I hear.

Is this true in Germany? As an American, I was always of the impression that in continental Europe, tips were as a rule a much smaller part of compensation.

Not as extreme as in the US, but it's still true. My brother nearly outearned me during our studies, I was a working part time student and he worked tables on the Weekend.