Just because you don't believe in a stationary place doesn't mean you don't have one. Plenty of people may believe in the American Dream but that doesn't mean it's real. Plus even if you don't believe in upward mobility it still doesn't mean you're happy where you are. Shitty conditions are shitty conditions regardless of whether or not you think you can get out of them if that's even possible.
If you don't believe in having a stationary "place" you seek more, you tell your progeny there is more, if only they try. Go, don't be like your father or mother, go make something of yourself.