In these years, the personality has just defined completely and your social life changes. You make a lot of friends and some of those friendships will probllably continue in the future.
Moreover, teens are the support of the education, and we begin to have a little of freedom. You can decide your professional future with the studies that you choose, do a lot of things like start going out without parents, and begin to have responsabilities.
In conlusion, I agree with this topic because in my opinion, If you choose correctly what you do, these years will be the best for your and you will probably get a good job in the future.