I remember wondering to myself in high school (in the early 70s) why they weren't teaching us the important everyday life skills that would matter most to us in a few short years.
When I was a Senior(1959)our civics teacher(he eventually became principal)spent the last month teaching us how to order in restaurants and many other life skills. He has us studying for finals also but that month taught me many things I didn't know about the world.
He was obviously a great teacher, and of course, you went to high school in an era when kids still had to learn something, and the teaching profession was determined to make sure they did.
I went to military schools until I was fourteen, so I escaped much of the degradation of the public schools. If not for that fortunate circumstance, I would have gone through the same dumbing-down process that most people my age were subjected to in those years.
Back to your point, I recall that it also bothered my mom that we kids weren't being taught so many of the most important life skills in school. I can remember her sitting me down and showing me how a checking account worked, and how to read and understand the household bills. She was also keen on me keeping up with current affairs via the newspapers and broadcast news.
Unfortunately, this was in a day when the MSM had complete control over the flow of information, and still had nearly every American fooled into thinking that they reported the truth without bias. As a result, I was pretty mixed up about politics for decades.
I had a friend who said his mother didn’t know how to open the car door till after he was born and she wanted to learn to drive. They couldn’t get a second car till after the war.
That isn’t the job of teachers, in my view (nor is sex education), but of parents.