An interesting organization of cleaning. Speaking frankly, some of these things I saw for the first time, namely a bicycle with attached to it a trash can. It's resourceful and effective. Seeing all this technique and tools, I recall a famous saying:

No trash - no mess!

The cleanliness of the streets will certainly depend on the culture of the behavior of the inhabitants. But cleaning the streets of the city has always been a topical job and such will remain. Perhaps in some circles of society, this work is not considered promising and desirable, but people doing this work deserve respect. Thanks to such people, the streets of their native city always look nice.
Thanks for the interesting post!