[noobermin]

Tbh, you don't need to win Olympiads or competitions to be a good programmer. In fact, competitions can often be distractions. Some programmers aren't even good at mathematics. It's not that learning more can't help you (as a rule, you can always learn more) but it certainly isn't an age thing.

There might be a certain demographic you won't fill, but tbh, that has no bearing on whether you can be a programmer first (just learning to program), or learning to program in order to contribute to say open source. As for getting a job, there are barriers tied to age which are primarily ageism, but that doesn't have anything to do with Olympiads than more to do with stereotypes about old people.