No, I don’t want to jail 20-year-olds for drinking beer. Some laws are so dumb that it is better that they not be enforced vigorously.
“Jail” should not be the required punishment for all transgression of law.
Have them pick up trash along the roads, pull kudzu, help out at the ER on a Saturday night so they can see all the broken bodies from drunk driving and cut & smashed faces from drunken brawls.
Having a law and not enforcing it is the surest path to total disregard of ALL laws. If a law is bad then it needs to be changed, not ignored.