Regarding rural settings, IMHO our rural roads were not constructed for recreational activities. If your impeding traffic, stop and let people pass. I really dont' think recreational activities should be holding up commercial activity. I would suggest lobbying for rural back paths.
I took out the first part as I don't really disagree a whole lot with what you said.
But this I do. Sorry - but alot of people don't consider biking merely a "recreational" activity. Many will use it as transportation when weather is nice.
But out of pure common consideration for others - I think it's incumbent on bikers who are near guaranteed to be slower (but you'd be surprised) to not impede traffic. Single file in traffic, stay to the right, pick safe routes. But drivers DO need to realize that isn't always practical.
And the feasiblilty of such a trail sytem throughout the rural areas is just not reasonable. It'd be great. But it isn't going to happen.
Problem is for every 1000 bikers, 10 will be jack-offs (and proly drunk or drinking) and act like imbiciles. And for every 1000 motorist who have to pass a group of bikers - about 10 will go into road-rage and mess with the bikers. Funny thing about those guys is they are so tough to dust the bikers on the shoulder, honk and flip 'em off - then jam on the gas and get out there like a bat outta hell.