Metric? Keep or change?

[tbeard1999]

Originally Posted by Flyndaran

Like you or someone else said, they're close enough to work as rounding errors. But if they're close enough one way, then they're close enough the other way. So no one should be getting their pants in a twist, right?
I suppose similar could be said for kilograms being close to twice the size of pounds.
That still leaves the question of why use modern units for fantasy settings. Even if "everyone" can make do with either.

Well, you have to have measures for weight and distance. There's no good reason that I can think of not to use the most commonly used (by your audience) system.

And there's particularly no good reason to use a wholly artificial system.