That can be the difference with an established setting like Eberron as opposed to a homebrew (although it doesn't always have to be.) To get my players involved in the game world and to invest their interest I get them to create a part of their world.
If they say they are from village X on island Y have them develop said village. Have them describe their home from their point of view. I had a player pick out a region in my homebrew that has not been developed yet. He said that he wanted his character to be from that area. I then put the questions to him what the place was like.
He mulled it over for sometime and about two weeks later he came to me with a new culture, nation, and religion. I was amazed. Now he knew everything about is home, his country, who the major NPC were, etc. I now have my other players developing areas of their own. As a result, they become much more vested and interested in the campaign world.
You can certainly do this with a published campaign world too. Start small though. Perhaps a town, a small island or maybe even a new religion, or the economy of a small nation. Players actually like doing that sort of stuff.
Good luck!
If they say they are from village X on island Y have them develop said village. Have them describe their home from their point of view. I had a player pick out a region in my homebrew that has not been developed yet. He said that he wanted his character to be from that area. I then put the questions to him what the place was like.
He mulled it over for sometime and about two weeks later he came to me with a new culture, nation, and religion. I was amazed. Now he knew everything about is home, his country, who the major NPC were, etc. I now have my other players developing areas of their own. As a result, they become much more vested and interested in the campaign world.
You can certainly do this with a published campaign world too. Start small though. Perhaps a town, a small island or maybe even a new religion, or the economy of a small nation. Players actually like doing that sort of stuff.
Good luck!