I started PPL training at the tender age of 66 in June 2006. Passed in 64hrs the following August.
I now have a tailwheel a/c non transponderised, no radio nav etc, on a grass strip.
I am as happy as a pig in !!!!e.
I have seen "young whipper snappers" demonstrating their total lack of hand/eye co-ordination in all diciplines from flying to hanging a picture.
My opinion on this subject is, Don't kid yourself that us "oldies" are past it.
I know a few extremely competent & perfectly "with it" pilots well over 80 who learned to fly very late.
Whether or not my previous life of enthusiasm, some gliding ~1956 break ~1980, helped I'm not sure. I am no fighter jock nor aerobatt but I have never had a comment from any Instructor that has dissapointed me.
Nor do I need a wee any more regularly than my youthful associates