The Family list cannot be deleted.
It is also granted by default to registered users with a limit of 3 Users maximum that can be put in, both to familiarise users with the use of a list, and to allow very simple use without subscribing.
When the User subscribes, this limit of 3 Users is removed.
What’s more, subscribing allows you to create as many lists as you like, with no limit on the number of Users.
It has all the characteristics of a normal list.