I don't think the rule actually says that. In fact, it only says:
Emancipated child.
If a child is emancipated under state law, the child is treated as not living with either parent.
See Examples 5 and 6.
In my state, South Carolina, you are emancipated by state law at the age of 18, regardless if you go to court or not. So if you are automatically emancipated by state law........you would be treated as not living with either parent per this rule.
