Not necessarily. For example, if you're having a parcel delivered to your home, but it arrives when you're at the office, you'd want to be notified when this happens. Maybe your significant other or roommate signed for it. Maybe no one signed for it and there will be another delivery attempt. This sort of thing happens to me all the time for packages I don't want delivered to my office.
On the other hand, notification of other tracking events would be useful too. I'd make it optional to have those.
On the other hand, notification of other tracking events would be useful too. I'd make it optional to have those.