multiple iPhone calendars

One uses multiple calendars to group related events. For instance, one could have a calendar for work-related events, while having a home calendar for home-related events. The nice thing about having separate calendars is that they are shown in different colors which makes it easy to see what an event is related to. Another nice feature is that you can uncheck some of the calendars if you don't want to see them for a while, such as turning off the work calendar when you go on vacations.

You can create as many calendar as you need (well, I'm sure there is an upper limit but you won't likely reach it) and you could create one for your kids soccer practice for instance. The choice is up to you as to when to create a new calendar.

Personally, I only have one calendar. This is a personal choice and it works for me but everybody's need is different.

You are welcome!