I don't know anyone besides vacationers from DC and Maryland and a couple of corporate lawyers who have actually visited Delaware.
@idontkn1: Maine, Rhode Island, and Delaware are all close to major metropolitan areas, so get a lot of visitors. Maine is the most out of the way, but it still isn't too far from Boston and has Acadia National Park, which is the 7th most visited national park in the country. Rhode Island is an hour or so from Boston, and you have to pass through Delaware to get from Baltimore/DC to Philadelphia/NYC, so almost anyone who lives in any of those cities passes through Delaware pretty regularly.
I'm from Pennsylvania, and other than the two major cities everybody I know just wants to leave. And PA certainly has more to do than North Dakota or Mississippi. Looking for some insight.
Jokes aside, it's too bad that states like Montana and Alaska are on here. Neither of them get a lot of publicity, but I've heard both places are beautiful and they've both been on my bucket list. I'm guessing remoteness is probably a factor working against them though.
I, for instance, have driven coast-to-coast, and some of the states I've listed that I have "been to" were only as long as it took to drive through to my actual destination.
For instance, Oklahoma... I've been to Oklahoma maybe a total of 2 hours, driving the 1 hour diagonal through the panhandle on 2 different road trips.
1) Yes, it is virtually certain that other users have been to all 50 states, although 50 is very impressive for a non-American. I've been to 46 personally.
2) The % who've been to 50 will certainly be inflated by people who enter all 50 states as a gag.
3) Yes, the percentages in this quiz include those who haven't visited any states at all.
TL;DR: I think it relates to demographics and geography, not policy. (Also, for the record, I think there's plenty to still see/do in many of these states, it's just a matter of inconvenience.)