I greatly enjoy the Marine Corp boot camp posts as we did yesterday, or any other of the US military boot camp Youtubes. "Customs and courtesies"? For sure. Some people do not seem to learn these at home.
I do understand that it is a form of rapid, rigorous education and job training but it is also man- (or woman-) building. I could have needed that, but my Dad was my DI in life. Tough SOB and never satisfied. Tough love all the way. That creates a love-hate thing, quite normal and good. Have to be tough and demanding to make a boy a man and a girl a woman. Even if they hate it, it's a life-long inner support system.
Should our high schools and higher ed instill more demands and discipline instead of more comforts and leisure pools? I think so. American ed could learn a lot from the USMC. American education pampers the kids with sensitivity and comforts, leaving them unready for tough demands of the real world and with little knowledge of the customs and courtesies of adulthood.
Is it too triggering? Few college profs have the satisfaction that those DIs have.