We all do scheduling on an individual scale at home, at work, mixing our schedules with our colleagues for meetings, with our friends for shows or dinners, with the kids’ practices, etc. Managing our own schedule can easily become a nightmare; imagine trying to mix schedules for dozens of people.
The only way a person can feel that they have maximized their time is to be prepared and to plan. We even do it for a simple vacation; what are we going to see? What time does the ride go at? You pick the important thing you want to do or see and plan other activities around it. Without knowing it, you’ve just done some scheduling while on vacation.