Human beings have always devised rules to curb undesirable behaviour.

Beliefs that underpin behaviour are teased out and understood as providing the foundation to our undesirable behaviour.

Could it be possible that one sign of disorder, graffiti, was triggering another undesirable behaviour, littering?

Ignoring the undesirable behaviour and rewarding only calm, quiet behaviour will do the trick longterm.

I've long advocated the creation of prestige sporting events as a means of regulating socially undesirable behaviour.