Its just young blokes being young blokes and being tits.
Its just the same when everyone gets there driving license and the boys think it is fun to parp the horn and screw around with every control they can reach.
The Deranged Caledonian speaketh the truth.
I'm very old and I fly almost exclusively with very old pilots like myself:
Indeed I've flown some very long distances in far off countries with oldies like myself.
And I've never ever suffered the interference that the OP talks about.
At the beginning of the leg it's " right: you fly this leg and I'll fly after lunch"
How simple a notion can that be to adopt if you behave with a modicum of maturity.?
Cusco