Don't send a Boy to do a Man's job!
Men have more experience - Boys think they are indestructible
Crass. I recall accidents where the boy refused to fly because of the weather report, so the man, chief pilot in one case, took the trip, result, one less aircraft in the fleet and a new chief pilot needed, funerals are expensive. Youngsters may be overly cautious due to lack of experience where as the experienced can be over confident, Experience can only be gained by doing, It's a difficult job filling the bag of experience without depleting the bag of luck.