Autonomy is very important in Kant's ethics. It means that people can make their own choices based on reason instead of letting others influence them. Here’s what that means:

• Moral Responsibility: When we make our own choices, we are responsible for what we do.
• Rationality: Kant thought that people who think clearly can understand and follow moral rules.
• Universalizability: The choices we make should be based on ideas that everyone can agree on.

In short, autonomy helps us to be true to our moral duties.