That's gotta be it! That's the only way any of this makes a lick of sense. Gohan couldn't learn the Instant Transmission so he just atrophied on the existence of other Dragon Balls.
How did you like the conclusion to Gundam Unicorn, Saito?
To keep the chatting to a minimum, something about this episode...
...Aramaki is having an important chat right now!
Oh yeah, that fat piece of shit does look like Vasily from Michiko & Hatchin!
Except that he doesn't speak with a Russian accent!
Probably NOT a good way to go about getting health care...