A friend sent me a quote that had reminded them of me and my reading habit:

If you do something like read a lot of books and talk to a lot of people, you can learn almost anything.

~ Elon Musk

I totally agree. Many people think that structured learning (i.e., school) is the only way to learn. The reality is that nothing stops people from learning (almost) anything they want to learn. They just need to grab some books and talk to knowledgeable, credible people. And then put in a lot of effort.