I believe the answer is language but I may be wrong.
Answer: As humans, we have a natural want, an urge if you will, to be near people. We want to fit in somewhere, to be told you belong. It's acceptance, and it's normal, being alone without human interaction is more of an unnatural want, and is usually brought on by past experience.
Explanation:
1. Teen Girl= Twelfth Night
2. Two Teenagers= Romeo Juliet
3. Lion King= Hamlet
Let me know if I’m right :)