USFREEDOM911
MAKE AMERICA GREAT AGAIN
Are you talking about a voluntary departure?
Self deportation can be a grounds for future inadmissibility. If the immigrant was illegally present for 180 days he is barred for 3 years and for a year of illegal presence they are barred for 10 years. Your problem is with enforcement.
Being barred would require them to appear before a judge; because it doesn't become automatic.
Self-Deportation occurs when ICE picks up someone. They are given the opportunity to "self-deport", which means they go before no Judge and are just returned to their country of origin.
There use to be a lot of it here, around Christmas. That way they got a free ride home.