I'm not giving my real name to any escort. Not first, last or middle. I don't want or need to know their first name, so they shouldn't want or need to know mine. My name is Stig and that is all you're getting. If that's a problem for the provider, and it rarely ever is, then I will just politely move on.
In all the years I have been hobbying, I can count on one hand the number of providers who knew my real first name. And, I knew them all pretty well before they knew it. They all found out my name through unusual circumstances and I never just told them. They never really asked.
I absolutely refuse to divulge any personal information to providers. I'm not trying to be a dick about, I just prefer to remain as anonymous as possible. I have only encountered a couple providers who absolutely needed to know and they got nothing from me, including no money.