Why have I been to so many places without drivers? I can't get it at all.

Brothers! ! Now it is difficult for semi-trailer drivers to recruit, and it is time to raise the salary of trailer drivers ... reason one: the old master who used to drive trailers slowly retired, but now he doesn't pick it up. Reason 2: The new learner's license plate, namely B2 license plate, can't drive a trailer, but there is no place for B2 to add A2 at present. Reason 3: Even though more than half of drivers with license plate A2 can't drive trailers, most drivers with license plate A 1A2 drive buses or buses. Moreover, the salary of the trailer driver is not much higher than that of the main driver, and it is also very hard to drive a trailer. Drivers who have never driven a trailer with A2 license plate or A 1A2 license plate are not attractive, and even if they apply, they may not meet the requirements. After all, driving a trailer requires a freight certificate, and some have to work in dangerous goods. There are more and more trailers now, but new drivers must join. Reason 4: drivers with A2 or A 1A2 license plates basically have their own homes and rooms and don't want to run long distances. After all, they have to take care of the family and their wives will have an affair. Brothers! Am I right? Brothers who can drive trailers must hold on. ...