What about you? Did you have a goal when you were a teen? Was it totally self-serving or did you give thought to how you might help others?
It would have been interesting if the writer in the article had asked the teens for some background information. I would suspect that they had parents, teachers, or mentors who had urged them to find a way to be of service.
If there are children or teens in your sphere of influence, are you making sure that they know you have faith in them and their ability to contribute?