Aren’t we all self taught? I’m not sure why that part of the story is relevant. In over 15 years of this business, I’ve directly been on a team with probably 5-10 total people with a comp-sci degree — and that includes my time at Apple. Mark Zuckerberg was self-taught.
No, a lot of people go to college or "bootcamps" before entering the field. Given the amount of computer science graduates, I'd say we're not all self-taught.