I think a lot of folks might overlook how different schooling is now than say when I was a kid in the 80s. Back then, classroom sizes were on average quite a lot smaller than they are now; and perhaps more importantly it was still common to have one parent not working, or only in part-time work.

There are lots of kids growing up nowadays where both parents are working 8+ hour days, and combined with commuting times etc a lot of the daytime opportunity for interactions with parents, discussing what they're learning, exploring books, nature, whatever just isn't as available as it was 40-50 years ago.