For a lot of people in the world, it would be cheaper for the governmet to buy their rural property, bulldoze it, and then buy them a house in a town with internet service – than it is to run a line to their property.
of course that would be cheaper if the government is paying for it.....That would also be cheaper than just buying comcast for someone even in suburbs of the US...
Its quite common on email domains.
I have a .email gTLD and I am frequently told its not a valid domain. Its getting better but apparently many forms only consider .com, .org, .edu etc valid.