Since I am new to this genre of gaming, the game kept telling me I needed trash cans so I put a ton of them, even though my park is really small, 4 rides and food/drink stations and bathrooms. Even though I put like 25 trashcans it still said this. But I put the trashcans on the edge of the walkways, not on the actual walkways, is this why it keeps telling me that there is a lot of trash and I need to put trash cans up? I also put benches up, but noticed no one using them, but I also put them on the edge of the walkway, so they were on the grass but not on the actually pathway.