I have to agree with this. I grew up in a village (pop < 250) in the mountains, and those were some of the most creative years of my life. When the entire town jokes that watching grass grow or paint dry is a fun thing to do in summer, you quickly learn to entertain yourself in novel ways.
As a side note, one other thing I think this has done is make me comfortable with silence. During the summer break when I would do long camping trips, sometimes I could go days without speaking, and I enjoyed it. Now I see people all around who seem to need and want something going on at all times. Since I no longer live in the mountains, meditation outside helps assuage my need for silence and solitude, but I am considering building an isolation tank.
On subject, I agree that freedom begets creativity. I love that I could mark a place on the forest service map, list my supplies, and say "if Im not back by sundown on day 3, then call the forest service". Thats a level of independence and freedom that was encouraged in my family that has served me well in many areas since.