Who the fuck do you think turned MBappe into the monster he is today? The clique at PSG did their best to bully the kid when he joined from Monaco. Now he's rebelled and turned into a **** himself.
Well no. Hes turned into a monster due to constantly being called the heir to Messi and Ronaldo by pundits since his PSG move. He's won a world cup and scored crucial goals that the french media made him out to be the saviour of French football and the reason they won the world cup. He's now just been given a contract with a 100 million singing fee. Also has a say in club decisions. The kid has a monster ego because of the media in his country and the media outside of his country etc. He's also been called the best youngster in football for years now by former players, pundits and media.
That's why he's a egotistical monster