Let's be honest here, 95% of top players would be handing their transfer requests if they were treated like Pepe was here. By your logic, looks like all of them would be considered mentally fragile.
Pepe can't ask for a transfer because he wasn't allowed to build his stock here, he basically lost 2 years at Arsenal.
I've seen enough from him to know that he can play, and should play for us, but what's going on behind the scenes is beyond me, and it's not only Pepe because we've seen questionable decisions with other players as well
He can play, but not 72 Million worth of play. How much we paid for him is not his fault, it does however burden him with expectation regardless.
He's a good forward, but so unpolished, so precipitous, so hasty. He needs coaching and nurture and patience to truly develop, which he is never gonna get here.