What is one responsibility that is only for United States citizens?

Serving on a jury is a responsibility that is exclusive to United States citizens. This is because jury duty is a civic duty that ensures a fair trial by a jury of one's peers, a right guaranteed by the U.S. Constitution. Participation in the jury system allows citizens to engage directly in the judicial process, which is an essential aspect of democracy.

While paying taxes, obeying laws, and voting are important responsibilities, they are not limited to citizens. For example, legal residents and even non-citizens may be subject to tax obligations and the requirement to follow laws in the United States. Voting, on the other hand, is a right granted specifically to citizens, but serving on a jury is uniquely tied to the civic duty that comes with citizenship. Thus, the responsibility of serving on a jury reflects a deeper involvement in the legal and governance systems of the country, linking it specifically to citizenship status.