Why can't many residential property services work?

Most property companies exchange services for property fees. There are also individual property companies with rude services. I have worked in four or five property management companies and also worked as a property manager. As I used to be a maintenance worker and had more communication with the owners, my personal understanding is that more than 90% of the owners are satisfied with themselves. Pay the property fee on time. If you are not satisfied with the property service, please remind us. It is very friendly. But there are always a few people who don't pay property fees and constantly incite others not to pay them. Finally, the property can't make ends meet and the service is not good! Finally, the vicious circle of property companies has become the culprit. Of course, the early property management is designated by the developer, or it may be the developer's own property. If we look at the faults in property services rationally, it won't be a pot of porridge broken by mouse excrement. Everyone in my neighborhood is very kind to me! I'm here to thank the host!