It’s scary if he or she is a teenager. I heard that people can get in legal trouble communicating in this manner with a teenager even they think they are talking to an adult. Not the same exact situation but if a person watches porn assuming they are watching an adult actor but in reality it’s not an adult (and a victim of trafficking to boot), you can get in a lot of trouble. I’d insist on tangible proof who this person is, his address, name, place of employment etc And would do a background check just to be safe