> most productive work years Yeah, no. The 18-22 years may be years where you have a ton of energy, but that doesn't mean they're the most productive. America

> most productive work years Yeah, no. The 18-22 years may be years where you have a ton of energy, but that doesn't mean they're the most productive. American 18-year old high school graduates are basically children in all but body size and have no experience in doing complex things that the modern economy requires. They still would have to spend 3-5 years learning skills (whether they do it in college or outside of college is less relevant)