They take the cream off the top first ?????
Since when did being young make you "the cream" ?
There will be as many useless 21 year old fATPL holders out there as there will be 40 year old ones. Equally there will be a few 21 and 40 y.o hot shots. You either have it or you don't.
As for not touching the older ones because they may have baggage like a family, last time I looked that was called discrimination akin to not employing a woman because she may get pregnant.
As has been said in other threads, there are pro's and cons on both age groups.
No I am not 21 or 40 - just somewhere in between