That would be a great foil to the main condesension of the narrative and him as a character. Big dreams inevitably lead to big disappointment, arguably whether you succeed in them or fail in them, you end up with no mountains to climb or a shell of an existence as we have seen in the previous stories. What truly matters is that the kids are allowed to dream, fail, and go on anyways which his hostile attitude towards ambitious students fails to address, he never fulfills that mentor role giving them a pillar of support as a confidant because he has been conflating his personal trauma with his percieved reality of the world. He fails to see how his use of personal anecdote isnt allowing him to be an excellent mentor/educator because he's trying too hard to make sure the kids dont end up like him instead of trying harder to make sure the kids end up better than him even if they fail.