Explain how and why perspectives of people change over time

People are different, always.

Explanation:

Many people are similar, others are quite different, and it depends on who's viewing them. it also has something to do with the crowd they run with, which can influence/pressure them into doing something good/bad.

because people change.

Explanation:

you or someone may change over time, and learn new things that make them change their mind. It's normal, everyone goes through it. We grow up-we change