When (at what age) and where should ethics be taught? Is it possible for one’s ethics to change over time? Why or why not?

Activity Time: 3 hours; Additional Time for Study, Research, and Reflection: 1 hour
This module introduced you to an overview of ethics and ethical foundations. For this first discussion board, address the following questions in your initial post:
Why should one study ethics? Are ethics really necessary for us to function as a global society?
When (at what age) and where should ethics be taught?
Is it possible for one’s ethics to change over time? Why or why not?