Over the years the letters roll in; nothing changes.
We are still the scruffiest people in Northern Europe.
It’s a fact – a derelict house gets vandalised.
Similarly, a town that gives low priority to its appearance and maintenance will not induce people to care.
Some years ago, Singapore had the same problem.
Their leaders decided that litter/neglect was a crime against society and punished offenders with a meaningful fine – now it’s one of the loveliest (and proudest) countries on earth.
That’s the answer (education isn’t working) – but I suppose we would be more concerned with the culprits’ human rights.