You're talking about being on the airlines from CPL, she's talking about being a flying instructor from CPL.
You don't see instruction as a worthwhile part time "career" then ??? And you think once you get past a certain age you should just roll over and die???
the original poster who's 60 has yet to learn to fly, hence he's enquiry
and therefore my post, I myself am nearer 60 than 50 ( just ) and have been
informed many times, that airlines do not employ pilots over 60, ( some do for freight apparently, but high hours required )
It is possible to train and attain a ppl or nppl and after 50 / 100 hours go for instructors rating, which would be wonderful if thats the sort of flying he's into