He definitely is not acting as he should away from the pitch, and will need to substantially change that behaviour if he wants to remain at City, but I don’t agree with that characterisation. As
@karen7 said, he is a rich lad with some questionable influences that is making mistakes, none of which are catastrophic or directly harming others (that we are aware of). I know very few people, myself included, that made not a single stupid mistake when they were younger. Or older, for that matter. And the vast majority of us have only had a small fraction of the influences, expectations, and (especially) scrutiny that Mendy experiences regularly. He’ll either mature and right the ship, or be off to somewhere else (a la Mario, Samir, Joey, etc.). But I have no reason to malign him as a person at this point (and definitely no cause to take to many threads to bash him).
My original response to you was never about Mendy’s behaviour, as I pointed out originally, so this is not confirming anything for me.