I disagree. As I get older and see my friends who are programmers, I see a key issue: Becoming set in your ways for better or worse, which leads to... not as willing to change or learn new stuff.

To be fair there are exceptions. There are people who just enjoy programming for the sake of programming and building stuff. These programmers will most likely never be out of date. If you're not one of those people, then you need to force yourself to step out of your comfort zone and try to use something new at least every year if not more often.