Why are some factories unable to recruit workers with high salaries, but the roadside recruitment is overcrowded?

I believe many people have seen such a scene in Shenzhen, Dongguan and other places. Near the road, many people stood or squatted together, surrounded by several pieces of cardboard with the words "looking for a job". This place is called "roadside stall talent market" These migrant workers' brothers didn't want to spend money to go to the intermediary to find a job, so everyone got together and waited.

There are many people looking for jobs here. At the same time, some factories have billboards with high salaries, and some factories have billboards with a daily salary of more than 300, but they still can't recruit workers. Then why? Isn't going out to work just to make more money? Some workers gave the answer:

1. Generally speaking, people who come here to look for jobs are short-term workers:

A worker waiting for recruitment said: The main reason why he didn't go to the factory was that he didn't have any skills and knew nothing about the operation of some machines, so he could only find some short-term jobs here. Bits and pieces are not difficult jobs, but most of them are manual jobs, but he is worried that it will be difficult to find a job when he is old in a few years.

2, the factory salary is not so high:

Workers who used to work in factories said that the salaries written by individual factories when recruiting were very attractive, and they often relied on this to attract workers. However, when they arrive at the factory, their wages are calculated according to Man Qin, which is open all month. Specifically, no one can work all month. Let the workers work overtime every day when they are busy, and there is no holiday at all. Give workers a holiday when they are free, without pay. Who can go to a factory without protection and credibility?

3. No need to wait for salary settlement:

All the people looking for jobs here are looking for temporary jobs. Some employers drive away the workers they need and pay them immediately after they finish their work. Many people come here to wait for jobs because they pay their wages quickly. For some workers, they think it is more cost-effective than waiting for half a year at the construction site. If they encounter "dirty" factories and default on their wages, no one can support their families.