I took up mountain biking more seriously two years ago when I was 44. I wondered about the same question you did last year and found similar answers. You're never too old.
I'm 44 now and I enjoy cycling in the nature more and more, I wish I had started earlier in my life. I am a kind of late developer, something that made me awkward in the past but makes me happy now. Despite of what the article says, I don't think I'm approaching the peak in earnings (that's because I don't think I get as much as I could, not because I'm particularly greedy). It's true that your mindset changes when you get 40. You get a bit less concerned about the present yet you live more in it, quite a pleasant status.
Though I find there's some truth in the article, the author is generalizing a very private experience, something that I find a bit irritating. It bases on how other people see her (madame instead of mademoiselle), while it's clear that it all depends on you. I don't like the mild sense of ending that pervades the article.
I have a friend that started at 44 and started dirt jumping at 48. He did his first no footers at 50! Now that I’m well into my 40s, it gives me hope that I can still progress.
