hey guys, I have someone that's interested in taking a line from me. He's probably reading the forum right now.

he would like to get one of my unlimited data lines from my family share nationwide talk and text plan. And then order an iPhone with the additional line of unlimited data.through apple.com.
he seems to think that in order to do that he can only get an individual unlimited data line not one from my family share line.
I've given line to at least one person who then went and did the apple.com add a line.
so I'm confused as to where he's getting the information that he can't take one of my 5 lines?