I wish my Mom had given me a reading with an Astrologer when I was a teen. First of all it's an hour (usually) focused full attention on the teen or young adult talking about talents, challenges, relationships, what kinds of relationships this person will attract, the timing of challenges which is very helpful to know, when it starts and when it ends.
As we all know it's not easy being young, when one tneds to be so emotional. Astrology is a great help in identifying the purpose of why things occur, and the support to know it (a difficult time) may not last much longer.
Career options, talents to pursue, helps one to relax and accept themself rather than feel they have to become something they're not. Increases self confidence and gives courage to be true to oneself.