What do you think of the plane delay?

In the air passenger service, although the regulatory authorities, air traffic controllers, airports and airlines have been working hard to improve the punctuality rate, the frequency of aircraft taking off late is actually quite high. Once this kind of delay happens, especially after the delay, no one comes forward to explain it to the passengers, especially without providing reasonable and convincing reasons, which is quite disgusting. However, the plane was delayed. In fact, there are many reasons, such as airport scheduling problems. This problem really can't be blamed on airlines, which are sometimes vulnerable groups. All airports in China are basically controlled and operated by local airport construction groups, and a few airports are owned by airlines (for example, Haikou Blue Ocean Airport is controlled by HNA). In this context, if the tower dispatcher of the airport does not approve a passenger plane to take off, it can only stay on the ground.