If I knew that there was a habitable planet at the other end where my progeny would be out of reach of the socialist bastards here (and if I were a much younger man), I would sign up in a heartbeat.
You expect us to believe you would go purely for the benefit of your descendants? Bull!
You're only interested in meeting the exotic, sensuous lithe alien women who whisper seductively, "Tell me more of this human practice called 'kissing' earth man."