[jerf]

Those are generally on the books because they are unenforced, so nobody even thinks to remove them. Were they enforced, they'd be struck quickly. Sometimes that even happens.

Are the ones in Germany enforced? Honest question, I don't know, and I'm interested in the answer.

[zaarn]

Quiet Hours on Sundays? Definitely enforced.

Dancing Ban? Usually not unless you're either A) a very big venue or B) a public place like a school. But for either cases it wouldn't matter much since most of them are closed on those days since they are usually national holidays anyway.