I actually did start giving old age some thought when I hit my late 20s.
Only because I have a penchant (now a fully retired penchant) for re-schooling rank horses that The Shaq wouldn't go near, and it caused me some permanent damage. That damage has been repeatedly pointed out to me by a various assortment of medical professionals.
Each verbal trip to the woodshed always ending with "--and you had better keep yourself fit if you want to be walking by the time you reach 40!. Well, 40 came and went nearly 26 years ago and I'm still walking.
So, on the one hand I fully expected to be in great physical condition because I've always had horses, acreage and do all my own work. On the other hand, according to my X-rays I should NOT be walking because I have no discs in my lower back - all that is literally holding me together is cartilage, muscle and my lower back has somehow managed to fuse itself without any surgery. I have a high pain tolerance level, so all I need are some Excedrin Extra Strength, Lidoderm pain patches and, if my knee acts up I slather it in DMSO.
Mentally better or worse with age? That depends on who you talk to; whatever those comments might be would apply to me since birth

layful:
Considering how many folks have ended up dependent on others, long before they reached my age, I am indeed very fortunate. Looking back at my stellar "Dukes of Hazzard" style snowmobile accidents, being kicked, drug, rolled on, and thrown off more horses than I can count (my choice of horses-lollol), I am doing pretty d**n good.