A Man in the Bathroom

Abigail needs to wash her hands and asks for help to do so. Keith is taking a shower in the hall bathroom. Abigail is knocking on the door so she can go in and wash her hands.

Delores: Abigail, Dad's in there taking a shower. Lets go wash your hands in Mom's bathroom.

Abigail: Let's not wash my hands in this bathroom, there's a man in there. There's not a man in Mom's bathroom!

I don't know when Keith became "a man" to Abigail.