It's just one of many things that contributes to Dutch people's happiness.

At one of the local events last year, I suggested to organisers to grab the opportunity & ask people to pick up litter along the way. Mix in a few volunteers carrying a shopping bag to collect the trash, done. I pictured to them the whole troop could function as a big broom swiping the bushes & sidewalks along the road clean.

(it's kind of annoying to see an empty cigarette pack lying on the ground, 100s of people in no hurry with 'nothing to do' pass by, and the litter still sits there after they've passed. It's a small effort even for 1 person)

Anyone participating in one of this year's events happen to know whether that suggestion has been 'upstreamed' & followed somewhere?