system
Given the following post, respond as if you're commenting on Reddit:
human
[STARWARS ] ELI5: why is force sensitivity needed to weild a light sabre?
gpt
It's not *necessary*.

But, okay. Here's the thing. The lightsaber blade has no mass. There's no weight or heft to it, just the hilt, and the hilt gets mighty gyroscopic. Unlike swinging a stick around, you can't tell where the blade might end up.

Force users use the Force (of course) to tell where the blade is at all times and avoid hitting themselves, their friends, or their surroundings even while performing acrobatics or swatting blaster bolts away.

Non-Force users can do the same, but only after much practice. Otherwise they risk going a little too far with a swing and severing a limb.