If I didn't feel uncomfortable with the first session protocol, I'd politely walk away. Jbeast said it well. The Ladies are welcoming strangers into their home or place of business. They need to feel safe. I don't blame anyone of them for having the requirements they do. I just know what mine are as well.
As for communication after that has been established, I prefer an in person conversation. That can be formal with strict protocol or casual. I think it helps give her the tools She needs to understand her toy.
