While some chain restaurants are using alcohol to increase revenue, others say that such an addition to the menu creates too many problems, reports The New York Times.

"With so many employees under the legal drinking age of 21, fast-food restaurants have a particularly hard time when it comes to alcohol service," said James M. Seff, the head of Pillsbury's Wine, Beer & Spirits practice.

"If someone is 18 and a buddy comes in who's 18, chances are better than otherwise that the minor will serve them," he said. "The regulatory authorities will murder them if there is a pattern in practice of service to minors."