Simple part first: yes, I claim that every city has or will soon have near-ubiquitous internet access. If you need to deny your future self the ability to choose to use the internet easily, you won't be able to live in a city. Further, surrounding yourself with internet users is going to prove much harder to resist than surrounding yourself with a non-technical, somewhat isolated community.

Like I said, I fear for the future. There are some ideas which would help even in a future full of free Wi-Fi connections (I've been toying with the idea of buying an 5th generation iMac, which was the last model of iMacs not to include a built-in WiFi antenna, and installing Windows on it; or I could just pay some IT dude to physically rip the internal antenna from a new laptop machine), but if it reaches the point of a free internet terminal in every room or something like that, then yes, I may well have to flee first world cities. That said, we aren't there yet, so I might as well take advantage of cities while I can.

Harder part: I don't know what you've tried already (and specifically: get professional psychological assistance, which often requires that you try multiple providers until you find one you trust). This level of avoidance (where you're considering careers based on availability) seems way more than you should undertake via self-diagnosis only.

I find the idea that I am supposed to consult with a "professional" before making drastic changes to my life a little creepy. However, if this doesn't work, I will seriously start to consider the use of psychiatric medication, which will necessitate talking to a shrink.