I think people in cities desperately need something like this.

Yes, that is what's happening here. These garden plots are very popular. It used to be just a plot on the ground. Maybe they realized that the raised plots are more convenient for the people using it - most of whom are elderly.

The whole idea of the community gardens is for residents who are into gardening to have somewhere for their interest. It is also a good place for them to social interact with each other. It is our government's way of keeping our elderly healthy mentally and physically.