There are ways to make this more efficient in terms of numbers of robots and distance traveled per bag. You can have larger dump trucks on major thoroughfares,

There are ways to make this more efficient in terms of numbers of robots and distance traveled per bag. You can have larger dump trucks on major thoroughfares, and use the smaller dustbots to manage the last mile to the houses. I'm with you that this version seems highly inefficient, but there are obvious ways to improve and optimize.