Because the fraction of the current world that reads every day and learns every day is extremely small.
Socialist countries are famous for literacy and education drives
Again, like I said before, how many people around you come back from work and want to read technical books and watch courses instead of chilling, or hanging out with friends? I have two friends who are nut jobs like me and work all the time. EVERYONE else is lazy and just wants to have fun after work, and that’s in my circle. This spans over decades in the different jobs and sectors I worked at, in different countries. Do you have a different experience around you? I have trouble convincing people to read for 30 minutes every day.
I dont think it is reasonable to assume humans will act the same way in all conditions. I know people who just slack off, and its generally because there is no incentive not to do the bare minimum when you are alienated from your labor