I'm 48, 210#, a nationally-qualified bodybuilder, and have a consistent appearance rating of 9.1 to 9.9. I LOVE acting my age.
I'm proof positive that one CAN grow old gracefully, be decent looking, fit, built, and mature, and that aging (through good science and discipline) does not need to be something where you get fat, out of shape, type 2 diabetic, high blood pressure, and look like a prune.
I've had numerous doctors at the gym (this is a true statement) ask me at the gym how old I was and replied in amazement "Wow!"
flex89, 19, and a type 1 diabetic with daily challenges, whom I live with often shows me the virtue, insight, and maturity of someone twice his age. There's nothing like a chronic disease to help bring things into perspective.
I meet 50 year olds who act like twelve year olds, as well. I have 20 somethings swoon over me, as well as older guys, too, that act like they are 15.
Chronological age, and maturity are disassociated.
I've heard "act your age" a bunch of time, but, laughter, science, exercise, nutrition, confidence, and a bunch of other factors, help us lead better lives. I don't wanna act my age if it means sitting on a couch, being fat, and watching tv all day. No way.