Name one responsibility that is only for United States citizens.

Serving on a jury is a responsibility that is specifically reserved for United States citizens. Juror service is a foundational component of the American legal system, ensuring that individuals are judged by their peers. The requirement for jurors to be citizens reflects the principle that those who participate in the legal process should have a vested interest in the outcomes that affect their community and society at large.

While paying taxes, obeying laws, and voting are also responsibilities associated with citizenship, they apply more broadly and can involve non-citizens in certain contexts. For instance, non-citizens are required to obey laws and can pay taxes depending on their residency status. However, jury service is strictly limited to citizens, making it a unique responsibility that emphasizes civic duty and the importance of participating in the judicial process.