Simple enough and no slur on young pilots ...
Sounds more like a father and son thing. My father wasn't keen on being a passenger when I passed my driving test. He knew I could drive OK ... but it's still hard to except "the boy" can drive. He's OK now ... but I'm near enough 40!
That was with something he could do himself. Think of the dilema if you add the fact that the father is about to embark in a "flimsy little aeroplane" which he knows not how to control
, with .... "the boy"!
SS