There has been a lot of bad behaviour from a minority of new recruits.
Drunkenness, arrogance, throwing up in public, throwing punches due to alcohol, urinating in public, being rude and harassing cabin crew sexually, etc.
Of course it’s ’not their fault’, it’s bad training.
Nothing to do with being too young thinking they knew it all.
Inexperienced with both long haul flying and life in general.
Its today’s society blame someone else.
Good riddance.