Why do some people require structure in life and some do not?

Question

By structure I mean schedules, routines, plans etc.

Answer 1

The way people are brought up has so much to do with it. As a child, my family didn't have any structure, and now ive noticed me and my grown up sisters need that sense of structure found in schedules, routines, etc because we don't have it innately built in our mind. It creates a sense of security in people's lives which are normally prone to instability

Answer 2

Everyone's different. It's why some people like bananas, and others do not. Some people like plans and schedules, and others like to live by their whims.