Did you grow up in the USA?
The kids didn’t ask for a safe space to recuperate because the parents either mocked them and told them that they were weak, or the parents themselves went to pieces on the kid’s behalf. Parents have been screaming “won’t somebody please think of the children!!!” for decades every time they saw something that bothered them (though the children may not be affected).
These parents, and the generation before, had panic after panic. They were afraid of commies hiding under their beds, they were afraid of atheists. Then the Boomers as parents stumbled from panic to panic. They were the ones who didn’t let their kids play outside, they were the ones who were in a panic about cults of Satanists kidnapping and murdering children. They were the ones who continued to panic about “a rising wave of crime” as crime continued to drop.
At the same time, their kids were told “your panic isn’t real, grow up”. But they themselves, never practices “Keep Calm and Carry On”
As for the people who were living through the Blitz, and who coined that term? They were panicking, sending their kids to the countryside. They lived in fear day in and day out. But people can be incapacitated by for only so long, before the learn to compartmentalize it, and go on with their life. That doesn’t mean that they are happy, of that this is the best way to deal with what’s going on.
Why do you think that the Baby Boomer age group in the UK and France were so rebellious? Because their traumatized parents bottled up their trauma, and refused to take care of their mental health and that effected the way they raised their kids. The rebellion should tell you how successful that was.
I’m sorry, but “Keep Calm and Carry On” is a terrible way to deal with trauma.
PS. I have lived through a number of wars and conflicts, personally participated in one+ and have been through a lot. I can say that “Keep Calm and Carry On” didn’t help, and I wish that I had a safe space when I needed one. And I grew up in a country which, unlike the USA, does not believe that demonstrating strong emotions Is Only For The Weak.