Sorry, did not have time to respond to the question in time. As in any similar project, only relative anonymity is provided. Simply put, we provide an opportunity to remain anonymous, but will the client use it? It's only his right. The possibility of error is not excluded, for example, the client can leave his documents by chance in the girl. Our system allows you to appoint a meeting, like a dentist. That is, the girl will know that she has a client for this time and will not require his identity card.
You know by just seeing his face the anonymous part become not so anonymous . It is not only about identity card . You can never call a system 100% anonymous while meeting in real life is a must for this system to success .
As for using the system for the first time - this possibility is not ruled out. But the same thing happens in the event that a prostitute finds a client on the street. The conditions are the same. The system helps protect workers in this sphere with repeated use. Ultimately, we provide not a panacea, but a partial solution, which in any case will be safer than their usual work.
I am sorry to say the conditions are not the same , in street there is big chance for eye witness while with your system no eye witness .
So a criminal can call a girl and do what ever he wants ( even kill her ) and no one will know about his identity and he will remain 100% anonymous because the only person saw his face is already dead .
Your project idea is not bad , You just do not have to call it anonymous ! because it isn't and you do not have to call it safer because it totally isn't .