They’re about training children to comform and obbey arbitrary rules created by people in position of authority and to value impression more than behaviour.

Of the countries I lived in, Britain was the one that had most of this shit and was also the one with the strongest “know your place” and “keep up appearences” mindsets of them all, especially amongst the middle and upper classes which were the ones were this shit was more common (there was a time of working class cultural significance during the 70s and 80s, which were a veritable explosion of creativity with movements like “punk”, but the social mobility and freedom that created it were crushed in the meanwhile, so working class kids can’t make it in the Arts anymore and that whole class is back at being culturally irrelevant outside fighting each other after football games).