Sorry mate, that is an apologetic excuse in my book
No one is saying the list you mentioned are not making / have not made mistakes. But they are not the same identical mistakes. Danny, for example, played a horrible back-pass to Lukaku against Manure; he was hopelessly caught out of position last Saturday for Brighton's goal. Both howlers and in no way acceptable. But they are different types of mistakes.
The point about Davinson is that he is repeating the same mistake over and over. This type of behaviour is not related to age; it is the inability to learn from experience and it is a personality trait that distinguishes some people from others. Not to say he cannot get it out of his system but I suspect it will need much more effort than normal on his part to get there....
Hugo still can’t kick a ball properly.
Danny still doesn’t look before passing.
Jan still turns like a battleship.
Toby still lets faster players get too much of a run on him.
Mousa still doesn’t release the ball at the opportune time.
Eric still doesn’t play his passes with the correct line and pace.
Christian still wastes FK’s, hits the first man at corners, gets dispossessed cheaply and doesn’t play with the conviction of his ability.
Harry doesn’t pass when he should and does when he shouldn’t, he also doesn’t put his body first and plays when he should rest.
Mauricio is overly concerned with players “feelings” and is arrogant with his tactics when pragmatism would yield better results, he’s also still not learned that there are scientifically proven optimal times and metrics at which to use your substitutes.
All that said, I’m not going to give a kid a harm time for sometimes overestimating his strength against opponents who only turn up in one or two games a season. He’s 30 odd first class games into his career, if he’s still making mistakes 100 games in then we can write him off too.
Fair?