I have seen two escorts who said they were students, and worked part time with an agency 10-12 years ago. In fact they were my faves, and I saw them at least 5 times each.
At first I was suspicious, as I'm sure that's a common story, but they were both studying courses in subjects I had an interest in, and I was able to discuss their subjects and get sensible responses.
One used to disappear for weeks at a time and only come back when term ended, so I had no reason to doubt them.
If they were actually just touring during the time and having me on, and were actually full time prossies, they were quite convincing. Both were English, about 20 and well-spoken.