"No.  No rules like that.  Just let them out of the system.  In dath ilan, yes, this is as simple as just getting on a vehicle to a different city, but if the nearest different cities were on the Moon and most people couldn't afford a ticket there, you'd need an escape option that people can actually reasonably take before regions could be allowed to pass fun clever regional regulations about perverted marriage arrangements where the women can't have money."

"No.  No rules like that.  Just let them out of the system.  In dath ilan, yes, this is as simple as just getting on a vehicle to a different city.  If the nearest different cities were on the Moon, meaning, even in Civilization most people couldn't afford a ticket there without a lot of saving, you'd need an escape option that people can actually reasonably take before regions could be allowed to pass fun clever regional regulations about perverted marriage arrangements where the women can't have money."