This is anecdotal, but when I was younger and still figuring out what I wanted to do, I joined a 1 year course that was supposed to prepare people with HS diplomas and other people with practical jobs like electricians and such to study engineering in college. Surprisingly, the vast majority of the men in my class were electricians that had regretted their choice because it was such a dull job with a lot of menial labor, like crawling through very tight areas and otherwise being on your knees a lot and in awkward positions.

You might be surprised by how strenuous electric work can be: pulling a cable bundle through a long conduit run, nailing staples at arm's length overhead, and finishing outlets at knee height.