I think that's kind of the point. We, as adults, use e-mail, especially at work.
By the time these teens get to work, what will happen is a mix of 1) They adapt to using email 2) They'll use their way of communicating with their then-colleagues.
New technologies are adopted more slowly at work, but eventually they will be, because people will use what is efficient for them.
(For a good recent example, look at the adoption of wikis in companies)
New technologies are adopted more slowly at work, but eventually they will be, because people will use what is efficient for them. (For a good recent example, look at the adoption of wikis in companies)