It creates an undue regulatory burden with no clear public policy interest. Regulation requires costly legislation, compliance, and enforcement - it's not as simple as someone just saying, "hey guys, please put labels on things" and we all move on with our lives. As such, we should have a clear public health interest in creating regulation rather than just a lark from people than have a gut feeling about something. The folks that have a gut feeling can seek things that do have the label they'd like.