You cannot legislate for idiots. This government is particularly guilty of bringing in new laws as the universal panacea to a given problem.
It's education that's needed not legislation, if you are not taught that a thing is wrong, how are you ever going to know, good behaviour is not innate, it's learned.
As for the argument about it bringing revenue to the city; revenue to whom? The publicans and other commercial interests will gain, and the rate payers will pay.

Giok