The key word here is "for me". As a previous commenter pointed out, your experience seems to be an outlier that is the result on many factors (innate talent, country of origin, socio-economic status, upbringing, luck, etc...).

Others (a majority apparently) do not really have the choice, the risk (of ditching uni) is too much for them to take and there is considerable pressure in some societies on young people to go to college to prove their "worthiness". Hence the fuss.

I wish I could just stay at home, learn scala and start trading crypto, but I won't have any safety net to rely on in case of failure, specially where I come from (developing african country).

Russia in the 90s, right after the collapse of the Soviet Union, was arguably as dangerous and poor as some African countries. My family was never rich, and I left home early, changing careers, places of residence and learning relentlessly.

You are right about the safety net. For me, it was the fact that I always can get back to a relatively boring and stable job of Java (or whatever) software engineer, if things went wrong. And I often had to. But the key point is that you do not need 4 years of education to become a Java software engineer. In 2017, it is way easier than in 2001, thanks to GitHub (the fact of Java being still around is the incredible stroke of luck, of course — but I had to change the horse midway, as I had started with Perl, and Perl is much deader these days).