What is one responsibility of U.S. citizens?

One key responsibility of U.S. citizens is voting in elections. This civic duty is foundational to the democratic process in the United States, as voting allows citizens to express their opinions and have a say in the governing of their country. Engaging in elections helps ensure that government officials are held accountable and that public policy reflects the will of the people. It is a vital means of participating in democracy and influencing decisions that affect various aspects of society, from local communities to federal governance. While starting a business, paying for education, and traveling abroad can be important actions for an individual, they are not formal responsibilities of citizenship in the way that voting is recognized in the democratic framework.