If you are old enough to collect Old Age Security, you are old. Sorry, just reality checking in here.
Now, about two hours after a hilly century or a double, I look old. A day after, I feel old. Fortunately, that goes away. Just not as fast as it used to.
I have a Ti road bike, two CF road bikes, one vintage steel road bike, one Aluminum/CF Cross bike and a CF Mountain bike.
Welcome to BF.