I think it doesn't really matter. Programming is not a physical impossibility for a vast majority of people. Like I could train for years and never be able to bench press 400lb because of genetic limitation but learning to program doesn't have that limitation. Learning to program like most skills just takes time, effort and dedication. I think if you fail at it either you weren't as interested as you thought or you may have been trying to learn a language that just didn't vibe with you.

Programming also seems like the only profession people just assume they can pick up in a year. No one wakes up and says I'm going to quit my job and become a doctor, or a professor, or lawyer in 3 months to a year. If they are making that type of career switch they go in with the expectation that they will have a lot to learn and it is going to take more than a year of concerted effort. Not everyone is going to become a software engineer at google or apple but there are plenty of well paying programming jobs.

Sorry for the long post I just get frustrated when people want to look at others failures as a gage for their own capabilities. Believe in yourself and put in the work, the results will come.

“He who who says he can and he who says he can't are both usually right” – Confucius