..... I'm sorry you lost me completely in that train of logic. How are planet destroying Gods and Tyrants that Gohan doesn't stand a chance against, comparable to kidnappers and pedos that Gohan can just look at and Kiai blast away? Like this is Dragon Ball, the biggest worry they have is Beerus coming back and not finding his food ready in time and forcing Goku and Vegeta to fight him over something trivial like that. Freiza coming back so strong is a surprise and Gohan is paying for not training by being knocked out by the sidekick. If it wasn't for plot, Frieza could just blow up the planet, meaning Pan is dead and Goku would have to get the Namek Dragon Balls to revive everyone.
Gohan should be training to make sure Pan has a planet to live on. He doesn't have to be the strongest but good enough to where he can handle the sidekicks and leave the big bad to Grandpa Goku and Uncle Vegeta. Those kidnappers and pedos are people even Hercule can take care of and nothing dark like that would happen in this show anyways.
What a Kiai blast is for those that don't know.