Of course, this brings up a problem, namely the increased costs of urban sanitation maintenance. But the purchase of sanitation robots and the electricity costs consumed by these robots mainly rely on fiscal appropriations, which in turn are primarily funded by the additional upfront revenue generated from foreign trade in new materials.
In other words, under Dou Dou's planning, the extra resources consumed are supplemented by the surplus income from foreign trade. You can think of this gap as the unreasonable premium that remains even after companies pay full taxes on the higher-quality materials they sell internationally.
At the same time, this labor isn't without value. Regular maintenance, and manual intervention whenever robots encounter issues, can effectively extend the lifespan of sanitation robots. As Dou Dou said, machines only reduce human labor, not entirely replace humans.
