I also tell you about bus drivers salary.
Driver have a fixed salary and a variable salary. The variable part of their salary depends on how many passengers they transport. Thus Chinese buses take many risks to drive faster and carry more passengers!
They will also make sure that all passenger pay their ticket!
And often they will not stop for older people who get on the bus for free. Therefor they don't benefit to the bus driver salary.
Hopefully the city of Changsha found a parade and gave older people a free card to travel and still pay the bus fee.