Why are there fewer and fewer mobike in Shenzhen?

I think there are many mobike in Shenzhen, such as near bus stops, subway stations, Shenzhen Bay Park and so on. I also saw so many mobike. Although I have been in Shenzhen for a long time and often go out, I haven't ridden mobike yet? Because I always take my children with me when I go out, and the children are still young, which is not suitable for mobike.

However, with mobike, it will certainly bring people a lot of convenience. The fee is not expensive, but a deposit is required. Of course, you can return it if you don't need it.

Basically, I can see something about mobike every time I go out.

(1) Once I was waiting for the bus on the platform, I saw an aunt hiding mobike in the flowers on the roadside, and she refused to let go of the roadside. Why is she hiding in there?

(2) Sometimes at the entrances and exits of subway stations, some mobike workers are repairing bicycles, changing tires, or loading broken bicycles onto trucks. When they saw a truck full of broken bicycles, they took them away and released a batch of good bicycles.

(3) It is often seen that mobike is "everywhere", with flowers and plants in the streets and lanes and in the middle of the road.