In my opinion, thanks to the Internet you can get theoretical knowledge almost in every sphere. And even become a professional unless the chosen sphere requires some specific practice. For example, for becoming a health care worker. But if you want to be a developer or translator, all you need is self-discipline and high motivation.
This is the good thing in our new world, you don't really need school since there is an internet, you don't need to have a class room since you have your own PC and you do not need to have a teacher since you have a lot of sites to visit with a lot of MOOCs (massively online open course).
Maybe the problem here is the certificate since in our country, you still need the certificate to apply to better jobs.