I think you've answered your own question there, He's accomplished very little because he's young and starting off with the first team.
It's clear as day Oscar Bobb can have a fabulous career, Personally I think he can contribute to the team even more so than Alvarez has done at City.
I don't know what point you are trying to make to be honest, Seems like you are implying young players should just give up before they start because they might not be as successful as a certain player.
For example Yamal off Barcelona, Is there any point having a career at Barcelona because he's never going to contribute as much as Messi...