Scenario: Adult siblings want to set up a shared family calendar for coordinating visits, family events and vacations, and transportation/help for their parents as needed. They would like all adult members of the family to be able to add their own events to the calendar.
Sub-calendars
In this scenario, each sub-calendar will represent an individual. So the first step is to create one sub-calendar for each adult member of the family.
It may also be helpful to set up a sub-calendar for notes, etc.
Event fields
Add a custom choice field to identify and filter events by type.
Add each family member as a calendar user and assign access permissions so each person has Modify access to their own sub-calendar, Modify-my-events access to the Notes sub-calendar, and Read-only access to other sub-calendars.
Here's an example of the access permissions for Markus:
This allows each person to add and update their own schedule, and add/modify their own events on the Notes calendar, but not change events on anyone else's sub-calendar.
Now each family member can add their own events and plans to their sub-calendar. They can also add events to the Notes sub-calendar for sharing information with other members of the family. Family members can see each others' schedules, make plans, and coordinate more easily for family events or caretaking needs.