I think what you're describing is undergraduates. In the US we don't typically say that undergraduates are academics. Usually, people who are academics will complete a masters and/or PhD where they do independent study and publish a thesis. Afterwards, many of them hope to stay in academia for life, or continue their work as a researcher in a private organization.
Academics have to go through undergraduate programs too, but most non-academics end their education with a bachelor's degree simply to help them get a (typically) non-nerdy job.
Other countries have students who study harder than Americans, for sure. As someone with a multi-ethnic background, I find that students in lesser developed countries have fewer options in their future so they study hard as a student for the chance to make it out of poverty. Students in highly developed nations don't worry as much because they think they have a decent standard of living waiting for them regardless.
I don't think that (for example) India has dramatically more nerds than (for example) America because being a nerd is driven by your personality. Nerds genuinely enjoy studying <x> in particular and they find ways to do just that. Nerds can end up as doctors or engineers but typically nerds aren't primarily motivated by careers. I think you notice this difference in the wide prevalence of cheating in poorer countries. Non-nerds feel the pressure to study but they're not actually interested in the work so they cheat to get by. Cheating exists in America too, but there's less risk of falling into poverty so students who aren't interested in a subject will more often accept a low passing grade.
Academics have to go through undergraduate programs too, but most non-academics end their education with a bachelor's degree simply to help them get a (typically) non-nerdy job.
Other countries have students who study harder than Americans, for sure. As someone with a multi-ethnic background, I find that students in lesser developed countries have fewer options in their future so they study hard as a student for the chance to make it out of poverty. Students in highly developed nations don't worry as much because they think they have a decent standard of living waiting for them regardless.
I don't think that (for example) India has dramatically more nerds than (for example) America because being a nerd is driven by your personality. Nerds genuinely enjoy studying <x> in particular and they find ways to do just that. Nerds can end up as doctors or engineers but typically nerds aren't primarily motivated by careers. I think you notice this difference in the wide prevalence of cheating in poorer countries. Non-nerds feel the pressure to study but they're not actually interested in the work so they cheat to get by. Cheating exists in America too, but there's less risk of falling into poverty so students who aren't interested in a subject will more often accept a low passing grade.