Too much wisdom, perceived or real, is a dangerous thing for one's ego. Turns many young talents into acute backpains. This might actually recoil on him when meeting his instructor with the same disdain we've seen above repeatedly since the thread started.
That knowledge will find him when the time comes.
100+ posts telling the lad how wrong he is, come on. Time to move on - #simNOTsin.
The only advice/question we should be asking:
After you reach the goal and become a real widebody pilot, do you understand the consequences and (missed)opportunities of living a life as one?
He should be studying Ruby / Go / Node.
js, not carburettor heat.