Incentivizing Language

[Agent 333]

I've long thought about making language trees for my settings, so that if you speak one language that's similar to another you can make yourself known easier than if you don't speak any related languages. For a real world example, it's far easier for someone who speaks French to translate something from Italian than it would be for someone who doesn't speak any Romance languages.
The only reason I've never done this is because it's more complicated than its worth. Chances are my players would not appreciate the work I put into it.

[Desertpuma]

I've always enjoyed the idea of having languages be important in a setting, especially a Fantasy setting. I think it is vital to have someone who is educated enough to talk in other languages, not just for Trade or Thieves but for different Cultures. I would go the SC2.0 route as well making them based on Culture or by Guild.