Didn't read the article but littering is getting worse IMA. I've being catching local bus a lot recently. Sometimes, just after the local school finishes, pupils troop into local convenience store to stock up, then back to bus stop eating contents and discarding the packaging at their feet.
Theres a bin with in 5 metres and if you remind them of this, normally just get a blank stare or abuse, but just occasionally, kids do respond , a group 2 or 3. But with larger group,the boys just showing some bravado me thinks.