... would be good. But it's been a decade and I think we're further from a society of polymaths now than we were then. I'm lucky enough to have been able to afford a constant trickle of college classes for the last 20 years. It's awesome. I get so much more out of it than my younger full-time classmates are. But it requires a lot of sacrifice. I probably wouldn't be on this path if I had had kids, for instance. So as…
I think there may always be too much socioeconomic pressure against it in modern industrial society for it to become normalized.
As technology gets better at eliminating jobs, we may see a socioeconomic pressure towards remaining pivot-ready by constantly broadening one's capabilities... A world where as soon as you have a job you start training for your next one on the side because they just don't last that long. Making such a lifestyle broadly accessible would mean some significant changes from where we are now, but in the long run paying for all that school and tolerating all that time-off to attend it might end up being cheaper than the cost of the unrest associated with resisting change.