You could have made the same argument in 1908, telling people to self educate at their local library.
If everyone watched a 2007 youtube course on circuits at MIT and learned the material, the value of such a skillset would be equal to the value of flipping Burgers at Burger King.
Ironically, my grandfather at the time made his career by selling correspondence courses for college degrees. It was the equivalent in those days. He met my grandmother selling her a course in mechanical engineering she used to get a better job at the phone company.
My grandfather started literally at the bottom - shoveling coal into a steamship's boiler. A dirty, dangerous, sweaty job he did for years. He improved his lot by taking correspondence courses, and liked them so much decided on a career in selling them, primarily to sailors.
> If everyone
I wouldn't conflate "don't" with "can't".
I know about the MIT course because I took it myself (along with others) to fill in gaps in my education. And why not? Education doesn't stop with the diploma.
If everyone watched a 2007 youtube course on circuits at MIT and learned the material, the value of such a skillset would be equal to the value of flipping Burgers at Burger King.