Like him, the threshold for going abroad is low. As long as there is a guarantor abroad, the labor service sign is just a domestic name. Any visa can achieve the purpose of working abroad, including traveling abroad. Many tourists sign abroad and then overstay, that is, as the saying goes, black is abroad.
The mentioned labor agency is only an agency specializing in going abroad. Generally speaking, such institutions will be widely used without much protection. In fact, it will be very cheap to go abroad by formal means, and many groups who go abroad can handle it by themselves. For example, a tourist work visa can apply for a part-time holiday while working, and it includes a deposit of less than 50,000 yuan (returned), while the intermediary in the south will receive more than 654.38+10,000 yuan (mainly because Fujian is illegal, and all southern provinces have to go through embassies in Shanghai, so it is more difficult to go through the intermediary, so it will be more expensive).
Dai Rensheng, as you said, belongs to the way of signing insurance for work.