system
Given the following post, respond as if you're commenting on Reddit:
human
[Dragonball] Why don't people just wish for Goku to die?
gpt
Shenron's power is technically only equal to that of the current Guardian of Earth. So the Dragon is unable to grant the wish of killing someone if their power level is higher than that of Kami/Little Green.

Similarily, to grant a wish like teleportation on a stronger entity, the entity must willingly accept it.