Isn't that roughly what we have already? Half of my day though high school was spent at a tech school learning programming and networking, for free. Kids were learning dental, medical, carpentry, electrical, automotive, etc.
Not for people who didn't have good education and lost their 10 years job to automation.
This is called the Internet.
You cannot learn to work a physical piece of equipment on the internet no matter how amazing the quality of video. Some things just take physical practice. I don't want a phlebotomist that has an online degree...
It should be possible for everyone at any age to aquire every skill.