That's not even nudging, that's just providing a necessary option. There is no coercion between "I want to throw something away" and "There's a trash can on the curb".
You're just trying to redefine the concept of the nudge. What a nudge is, really, is a thing whose purpose is to influence a choice, not to constrain it so that there is no choice.
but here's a much more explicit nudge example: https://en.wikipedia.org/wiki/Don%27t_Mess_with_Texas