I would not describe a world comprised of 20 somethings straight out of college, 30 somethings with kids, 40 somethings with teenagers, 50 somethings with colle

I would not describe a world comprised of 20 somethings straight out of college, 30 somethings with kids, 40 somethings with teenagers, 50 somethings with college-age kids, and 60 somethings with grandkids, nor people at any of these ages without kids as possessing anywhere near the level of homogeneity as you see in a K through 12 classroom.