All societies are engaged in encouraging some behaviors, being neutral about some, and discouraging others. The tools for encouragement and discouragement are a

All societies are engaged in encouraging some behaviors, being neutral about some, and discouraging others. The tools for encouragement and discouragement are almost always, and always should, lie on a continuum from "subtle" to "draconian". Your proposal amounts to banning the intermediate grades. I suspect this is not what you actually want. It is certainly not what I want.