As for the boss who doesn't sign or likes to sign agreements and contracts, it may be that the business rhythm of this company has changed a lot, that is to say, the off-season is obvious or the business volume fluctuates greatly. When the business volume is large, the boss will recruit more people, and when the business volume is small, he will directly reduce the number of people. If you sign an agreement or contract, it will be very troublesome to be ready to reduce people at any time.

Another possibility is that the boss doesn't know much about labor laws and regulations, and on the one hand, he has resistance to the relevant provisions of the Labor Contract Law. After all, the labor contract law focuses on protecting workers; On the other hand, I simply think that as long as you don't sign an agreement or a labor contract, you don't have to bear the corresponding responsibilities.

I think the first one is more likely, and the second one is definitely luck.

As for your "means of hiring cheap labor", it makes sense. At least if you don't sign an agreement or a contract, the boss may save insurance fees.