I once met an 89 year old gentleman at a Metallica concert there with his granson. He was asking his grandson why he couldn't keep up
I guess my point is that it's amazing how we percieve the aging process. Remember when a lot of us though 30 was old, the 40, etc....
We'll all get there soon enough and not think anything of it. I agree with you both that that's where we get our inspiration, and that's why we don't think much of it once it's us!