>>99537518Everyone else got to go on a life-changing field trip with Zuko where they learned to trust him and gained valuable emotional closure in the process. Aang learned that firebending could be something beautiful, driven by ambition and passion instead of anger and hate. Sokka, absolving of the blame he laid on himself for the failed invasion of the Fire Nation. Katara got closure on her mother's death and forgave Zuko for betraying them.
Toph had a lot of fucking issues to work on, her broken relationship with her parents, her difficulty acclimating to a group, her anger and stubbornness, etc... none of which she got to work through before the series concluded... Toph not going on a life-changing field trip with Zuko is probably why she ended up being such a fucking shitty parent in LOK.