On a 1.5km walk from my daughter's gymnastic class last Sunday I chose to pick up any waste that I would otherwise have to step over.
For a 1.5km walk you'd hope to collect no rubbish or at least a little wind-blown scrapes.
However, the collection was quite credible. And, it included a lot of recyclables. As a bonus, it also included an Australian $2 coin - collection of rubbish had never been so rewarding.
We live in a wealthy and glorious country. I'd hope that would cause people to take more care in disposing of items.