He also thanked their parents for their support. I believe internships are important because they are a testing ground and provide opportunities to find what you like and what you don't like. That's really essential as you are developing. Often you don't know in advance into what areas you want to go. It's important in a continuous learning environment to test the environment before you make final commitments.
Internships are also important because they build confidence.
They let you try out something and take risks. They let you weigh yourself among other people in the group. That's good, because it helps develop the arsenal of small successes that builds the confidence to let you do other things. We all need to accept the fact that in this entrepreneurial environment we are trying to create, people are going to try things and not be successful. Whats important is to try again and again until you get it right.