Why are taxis in Shantou so broken?

There are many scrapped taxis, and cars are not allowed to break the meter. If you take 9 or 8 taxis that don't hit the meter and you give them 10, most of them don't give you change.

But some cars are ok, but they are rarely encountered.

There are many private cars and motorcycles, which compete with taxis for business, resulting in the underdeveloped taxi industry. The system is also relatively backward, just compare with Shenzhen.