I must be getting old

How do you know when you are getting old? Did it start when I got married? Had kids? Maybe it was when I started needing glasses to read. Although I'm guessing it was when I was driving home this week. I turned on *gasp* NPR. There's nothing wrong with NPR, but you must admit there is something "old" about it. Especially when you find yourself humming along to the filler music. What??!! I so was not humming along!!