Are there among the great programmers people who started coding at the age of 18 - 25?

Question

IT education

I wonder if there are people like: Linus Torvalds, Bjorn Stroustrup, Sir Tim Berners-Lee, Mark Zuckerberg, Bram Cohen, Brendan Icke and others. Those who started programming as adults (for example, got acquainted with programming in college, university or in high school (9-11)), or did all great programmers begin to learn programming at the age of 9-13?

Answer 1

You don't need to look back at someone
If you're addicted to development, then you don't care how big you are

Answer 2

Not such a thing as a "great programmer". Some at the age of 40 start and successfully engage in this profession.