Just to tell you, it doesn't ANYWHERE say a women can't have aquantinces with men, every country (no matter how islamic) has women receptionists.
Also it doesn't say anywhere that a women can't travel for more than 48 miles, however it does say women can't travel BY THEMSELVES, to HAJJ, and more than three days, this was because travelling alone in a desert was dangerous, today we have security and safety, and im sure the longest airplane ride was less than three days.
However a women is allowed to to live by herself indefinitely.