It's also probably much more interesting to go to a poorer country where people are more likely to be farming out in the countryside or walking/biking around than just walking by some highway in a western country.
You could--today, right now, right this very minute--probably get somewhere in less than an hour where people are farming in the countryside, biking around, etc. You could get out there and see it and be back in time for lunch.
I live in one of the most expensive, overpopulated regions of the United States, and taking an hour drive west--with most of that hour being dealing with traffic just to get past the first 10 miles--and be in gorgeous, rural countryside with hills and trees and beautiful fields and streams and animals everywhere.
Or I could even stay home. I could walk down one of the hundreds of streets I've never walked down before. And it will most likely be a veritable smorgasbord of new experiences.
Just because you've parked your butt in one place for a while doesn't mean you know everything about it. Geography is a dense place.
I grew up in the sticks. The country. The middle of nowhere. Or, as I used to call it, to the left of the middle of nowhere, because at least the middle of nowhere had an intellectually interesting distinction of being in the middle of something.
Yeah, it's "boring" out there. We dreamed of living in the city and going out to craft beer bars with a wider selection than just Dogfish Head (if they even had that) every night and seeing awesome bands play who weren't the same, one band you've been seeing every other night since high school.
Now that I live in the city, I dream of living in the country and going hiking every weekend. It's "boring" here, when all there is to do is go check out world-class art museums and Michelin-rated restaurants. I miss sledding in the snow. I miss seeing the stars every night--all of them. I miss not living under an airport takeoff path.
Point being, people have a tendency to do 10% of what a place has to offer and assume the other 90% is the same. One of the first few months that I lived in Philadelphia (when I lived there, I'm in DC now), I met up with a friend at this place called Reading Terminal Market, for lunch. He had lived there for 10 years and had never been to the place. "Who knew this was even here?" he said. Uh, dude, it's one of the most popular places in the city. You can't watch a travel show about Philadelphia and not have them mention it.
Some people are just dense. If you're not engaged in your location, the grass will always appear a shade or two closer to #00ff00 everywhere else. Someone, somewhere, wishes they live where you live.
Well, barring somewhere really fucked like Mogadishu or something. Hell, I bet there is an aspiring photojournalist somewhere who'd like to be there for 6 months, though. So you never know.
If you're going to do this for a really long time, you may as well travel somewhere that will excite you, and where you can do it four times longer for the same money.
Access and wild camping are a lot easier in Scotland as well http://www.outdooraccess-scotland.com/