@sickburnbro @EnnaComa @Mamako @amphidamant @jimmybuffettfanaccount That's because the K-12 School Industrial Complex is a key part of the Democrat's system, from the patronage that bulks up these low performing schools (which also have an impossible mission with the restraints on allowed discipline), to the political power they return to the party. They can also be lazy, see Oakland, California discarding a system that worked but had boring hard work as is required anyway.
Reading is something worth focusing on. What happens when your ruling trash decides they don't want most of the population to learn how to read (in an era where radio and movies could supplant that as a means of communications including propaganda)?
You can't understand any of this without knowing the systematic degradation of US public school teaching quality, for which the 1930 publication of the first Dick and Jane and Their Running Dog Spot basal reader is a useful marker. This was called out very strongly in the mid-1950s and it's still being fought over.
Severe to the point of making K-12 potentially worthless thought lowering of standards also happened no later than the 1950s, Heinlein wrote a lot about this. That plus the Supreme Court outlawing basic intelligence and the like testing for jobs is one reason college became so big, it became the last resort signal (for a while, at least).