Who gets to define 'older'?

I'm probably showing my age a little bit, but I remember being in elementary school and thinking that all of my teachers were old. In reality they weren't, but they dressed older and very conservatively. So not having any real concept of time and age I thought they were all in their 60s and that seemed ancient. Wow, how times have changed. Styles have changed and people have more choices now in their hair color and clothing styles, not to mention people are living longer and doing more. Nowadays if you are smart you will never try to guess someone's age.

When my kids were in school the teachers all got younger. For that fact, so did the policemen, the firefighters, and the doctors. Maybe it's partly a new reality and partly perception. People seem more active now than when I was younger.

What do they say? 80 is the new 60, and 60 is the new 40? I can't tell you how often I hear people say their age may be one number but in their mind they're still 20 years younger. When I was young the only activities I saw my parents partake in was playing cards. I never saw them do anything active or break a sweat. My mother did play the piano, but always with grace and dignity.

I recently just turned 60, but don't feel like it. My friends say they would never guess that was my age if I didn't tell them - but maybe they're just being nice.

A friend told me a funny story the other day that she was somewhere trying to get some records and a stranger made a comment to her that birth certificates are only online going back a certain amount of time. He said he'd been around a LONG time and knew this for a fact. She asked when he was born and he replied, '1981'. OMG! Seriously? That's the year I graduated from high school. I have news for him, records go back a bit longer than that, lol. He was defining 'older' in a whole new way.

So WHO exactly gets to define 'older'? And who gets to categorize people and label them and what makes them feel qualified to do that? I certainly wouldn't want that responsibility. I'd like to keep my friends, thank you very much.

Do you feel age is just a number? 

Do you let your age define you by someone else's definition?