All good points D.M. - As far as behaviour goes, I think young people run the gamut. I've met a lot of nice polite young people and I think the ones that draw attention to themselves acting out are in the minority. Is there a need to do math the way we used to do it doing multiplication long hand adding up columns of figures on a piece of paper? We did it that way because there was no other way (battery operated calculators were unheard of (at least at an affordable price) until the mid 70s- unless you were handy at logarithms. I still know how to multiply 12 X 12 but it doesn't serve any useful purpose unless you are stranded out in the bush with nothing but your wits & for some reason have to multiply 12 X 12. Facing modern day reality maybe the ability to change with the times is more important than clinging to old dogmatic procedures (much as I hate the change)
I get where you are coming from JLM. There were things taught in the old days that were dropped from the curriculum because they were deemed unimportant.
But what those 'unimportant' things did was stimulate the learning process and discipline the mind. What comes to mind is the memory work we had to do. It served no useful function in adulthood but it did forced kids at the time to use their brains. There is no limit to what the brain can absorb, we don't use anywhere near our brain's capacity but the more we use it the sharper the mind becomes.
I learned formulae in school for finding the area of circles, triangles, etc. and never used them until in mid-life when I started renovating houses and suddenly it came back to me. I certainly made my endeavors much easier than if I had never learned them.
Once a thing is learned it stays in the mind forever. (The 3 'R's of memory: recognize, retain and recall). I don't see any reason why the old ways cannot be taught and the ability to change still be possible.
As I mentioned somewhere before, how everything comes to a standstill when a power outage occurs. All commerce would not have to stop if people still retained the old ways of calculating and recording. The way society is moving, there might come a time in the near future when we will need to know things that the kids now do not know.
Just my humble opinion, mind you; I enjoy the debate!