Funny enough I worked with an old timer back in Charleston, SC which historically had no regulated last call. During his drinking years they passed a law requiring an 0200 closing time which, as he put it, was a terrible idea because it put all the drunks out on the street at the same time causing joint chaos. In his view having no official close meant folks naturally filtered out over time as they were sated. Seems any hard stop causes trouble?
How do you imagine this playing out?
People don't get the alcohol they want anymore -> no more orders -> No more business -> Not worth it for the owner