I guess you don't recall one-way "blue ticketing" repeatedly arrested troublemakers from Southeast Alaska towns to Seattle via Alaska State ferries?  Or prior to/during Viet Nam Courts offering no sentencing if a troublemaker decided to "volunteer" for military duty?
They could have chosen to stay and face unspecified - and therefore scary -  local legal consequences from an angry public order system; but most did not. And returning to the small communities from where they had been inspired to leave carried  its own legal hazards..
Seems to have worked well..   Warnings of alternative consequences to departure aren't coercion, are they ? Just good advice, I think...