The job training you get at 20 is often obsolete when you're 40. For example, many women of my parents' generation trained for jobs in the textile industry. But eventually the jobs disappeared, as Finland got too wealthy. A bit more abstract education would have made it easier for them to find a new career.

But not too abstract. From my point of view, the weird parts of the American educational system are the high school and the college. Everyone is supposed to choose the academic track. I'm more used to systems with separate academic and vocational tracks in both secondary and tertiary education.

There are certain advantages to having separate academic and vocational tracks, but that tends to lock out late bloomers. Quite a few of prominent US scientists and business leaders didn't have good grades going into secondary school.

economies and national policies are complex. only the most straightforward things, like ending patriarchy, wars and modifying interest rates, have firm evidence of causing this or that thing on a national scale. nobody knows if so and so nuanced educational policy really matters in an intellectually honest way.