It seems Toriyama later regretted the way he developed Gohan from the Buu Saga onwards. This is very clear in the Dragon Ball Super: Super Hero movie, which finally gave Gohan the momentum he deserved ...
Gohan is one of the best characters in Dragon Ball Z and even now, these five moments are considered the most iconic.
At some point in the Dragon Ball series, it seemed Gohan was about to become the main character. So why didn't he?