Pretty much every toddler is taught to put rubbish in the bin and that it is bad to drop it. They usually love doing it and are the first to tell off adults who don’t.
So where does it all go wrong? At what point in life do people forget or decide to ignore this and become the sort of disgusting pigs who leave their litter in parks, on road verges and on beaches?
If you have left your litter behind in the park, why? What goes through your head? If a bin is full, why do you dump your shit in the floor instead of taking it home?
(The only exception is festivals which have paid litter picking included in the ticket price).