Hello, and is it work at night all the time, or shift based? How was you experience doing it. Today couldn't do it myself, maybe at an younger age.

I don't think its shameful, I might have done it myself. Its a first world problem clearly.

Still I wonder about the legality, because in most countries there are laws that prevent workers from working at night all the time.

At most you make shifts, and workers do it one week a month, and not all the time for years to prevent long term health consequences for the worker.