It could be nice as an option, but it shouldn't be required. Yes it's historically inaccurate for certain civs to start near each other, but for the sake of gameplay you want to have a variety of different potential neighbors, so your games don't feel the same every time you play.
I believe there was someone who made a map script for Civ IV that did something like this, generated a map and then placed civs with an eye towards common culture. I think that's the right way to implement something like this.
I believe there was someone who made a map script for Civ IV that did something like this, generated a map and then placed civs with an eye towards common culture. I think that's the right way to implement something like this.
