There are many security guards on the bus in Xining City, Qinghai Province. Why didn't you see the security guard this year?

There are many security guards on the bus in Xining City, Qinghai Province. The reason why there is no security guard this year is that after years of security escort on buses in Xining City, Qinghai Province, the number of pickpocketing cases on buses has dropped significantly. By 2023, security risks have been eliminated, and security guards have been removed this year. Therefore, there are many security guards on the bus in Xining City, Qinghai Province, and there are no security guards this year.