I wrote my first program when I was 15. I did masters in mechanical engineering and own and work at centrifuge manufacturing company. I'm now at 35. Not a singl

I wrote my first program when I was 15. I did masters in mechanical engineering and own and work at centrifuge manufacturing company. I'm now at 35. Not a single week has been passed without me doing some programming. Sometime making internal web apps for problems that can be solved with excel. So not exactly the case OP is looking for, but primarily I didn't made career in software just because there was no demand for it when I started. ( in retrospect there was a demand, but sometime being good at something means you can not correctly guesstimate how much people are willing to pay for something you can make in couple of week. )