Think of an activity that you do not know how to do and want to learn, now write it in Google or Youtube followed by the word "tutorial", you will be impressed by the amount of information thrown in seconds related to this. Issac Asimov already predicted it a few decades ago that humanity would have a "superlibrary" where anyone was going to be able to learn self-taught through a computer connected to the network, Asimov had a very precise futuristic vision.
The network is changing the way we learn and achieve things, open source and creative rights they put thousands of multimedia and downloadable files within the reach of a few clicks and in the language you want.
Virtual communities like Reddit, Taringa and even those of the universities offer courses, guides and forums that increase and receive feedback every day with the active participation of their users. You don't need anything more than a camera or an article to publicize something you are an expert at. This is how the human is not only a student, but also a teacher and is part of those who decide which resources are good and which are not.
El emergence of websites and companies that offer careers in any field are on the rise, so much so that even many of them are certified by governments, schools and companies, just as if attending a university in person. The online classes offer videoconferences so as not to lose teacher-student communication, reading documents, videos and virtual chats of team work, all this from your home or somewhere in the world and at a very low price compared to what you would have to pay for tuition, transportation, stationery and other requirements.