Will Multilingualism Reduce The Number Of Factions You Face?

What other things do you think will become easier if you learn a foreign culture's language?

Is the learning tree really the best? Been a while since I've played but I always thought stewardship was pretty strong.

So the whole language thing is a little confusing. It's really hard to tell how much of your realm actually speaks a given language and how much of your court speaks a given language. I wish they would give us like a pie graph where you could see at a glance what percentage of your realm or courtiers speak particular languages so you know which ones to prioritize learning if your character can only learn a few languages.