Suggestion would be to just increase the DCs. But if you look at the DCs right now.. they are defined by an easy question or hard question.
Knowledge(local) for a peasant. Easy questions, just about everything about what people do in your local town. Major merchants of nearby cities. The names of many of the nobles in the region. And probably at least the king and much of the royal family. You'll know the customs of the nearest few towns, and maybe the overall kingdom, but wouldn't have heard of the nieghiboring kingdoms customs unless it was something extremely weird.
knowledge (local) for a noble. They are going to know all the major region kings and whatnot, and probably have heard about the kings and royalty of kings far away. laws and customs for the major countries around you, but probably not anything about special customs of most towns.
knowledge (local) for a military person. Know just about all the names of heros from even several kingdoms over. Probably only know the customs of the areas if it pertains to war. And then you could probably tell what sorts of armor and weapons most of the nearby kingdoms use.
My interpretation is that how far the knowledge goes, or what is defined as easy is really dependant on the situation.
Knowledge(local) for a peasant. Easy questions, just about everything about what people do in your local town. Major merchants of nearby cities. The names of many of the nobles in the region. And probably at least the king and much of the royal family. You'll know the customs of the nearest few towns, and maybe the overall kingdom, but wouldn't have heard of the nieghiboring kingdoms customs unless it was something extremely weird.
knowledge (local) for a noble. They are going to know all the major region kings and whatnot, and probably have heard about the kings and royalty of kings far away. laws and customs for the major countries around you, but probably not anything about special customs of most towns.
knowledge (local) for a military person. Know just about all the names of heros from even several kingdoms over. Probably only know the customs of the areas if it pertains to war. And then you could probably tell what sorts of armor and weapons most of the nearby kingdoms use.
My interpretation is that how far the knowledge goes, or what is defined as easy is really dependant on the situation.