Final answer:
Sebastian describes teenagers in "The Little Mermaid" as rebellious and in need of constant supervision.
Step-by-step explanation:
In "The Little Mermaid", Sebastian describes teenagers as rebellious and in need of constant supervision. This can be seen in the character of Ariel, the teenage mermaid who defies her father's rules and seeks independence. Ariel's actions and desire for freedom exemplify the typical behavior of teenagers who often challenge authority and explore their own identities.