When I was in high school, Home Economics was a required course, 1/2 the year devoted to sewing, the other 1/2 to cooking. That was 50+ years ago and I doubt very much that there are more than a few (if that many) of us who took sewing classes who actually sewed once they graduated from H.S. and got on with their adult lives. My point is that nothing has changed; the percentage of people who sew is much the same as it ever was.
I've always liked sewing, especially clothing for my children, from toddler size on into adulthood. I made almost all my clothing to wear to the office where I worked and, simultaneously, went through a doll-making phase. Now I only make quilts & do some infrequent mending.
I don't know what they teach in school any more. Seeing quilts on display, those just for display as art and those for sale is what got me interested in making them, and I've been hooked ever since. I like to think friends/family who make quilts and quilts on display will continue to stir up interest in quilt-making and continue to keep it alive & well.
P.S.: I'm both lucky that I got to see the wide variety of quilt shows that were on t.v. for many years (on PBS, etc.) and disturbed that there are virtually none to watch any more. I appreciate the instructional videos available on-line, but the t.v. shows were superior, IMO.