How is she 19 and not already been paying rent, or room and board?
As soon as we got our first job, my parents required 25% of our take home pay for room and board.
I caught them by surprise when my first tax refund came and they were expecting 25% and I reminded them that they said “take home pay”. They just looked at each other kind of speechless, ( a rare event and quite an accomplishment on my part) then chuckled and said that I was right.
I think it was then they realized they had raised me right in at least one regard.
I paid room & board to my parents, who returned it to me as a starting out present when I got my own place