There is a reason why Son Gohan’s importance in Dragon Ball has fallen.

Teacher Jo San-myeong said that he tried to naturally change the main character from Son Goku to Son Gohan, but no matter how much he tried, it didn’t flow naturally, and Gohan’s popularity and character were too low compared to Goku, so there was no choice.

So, although Son Gohan is the strongest Dragon Ball player, he is dismissed as a genius character who does not try hard.