Its called the old Synagogue for a reason the Nazi's defiled it and I think it was never consecrated or a house of god again. The Jewish community build the new Synagogue after the war at a less prominent place.
I guess you had similar park benches in the US but the inscription would be Blacks and Whites. If you write a story of a Black janitor whacking a White princess In 1960 you might make the white population retaliate. There are still Germans who might feel its necessary to retaliate by hunting Jews for a Jew giving a German child not respecting their church a whacking.
Some areas of life are too sensitive to create light entertainment.
Actually since 1980 there is a law in Germany saying that children have the right on a non violent upbringing. Only the federal government nowadays is allowed to use force.
Old Synagogue Essen GermanyIt is always funny when they state that Germany has the strictest weapon laws. That might be true but there are too many ways to navigate them. You want a gun, you join a shooting club. These clubs normally have enough police men as members who will provide evidence that their pals in the club are trustworthx enough to get a weapon permit card.