Early in the 1992 movie Poison Ivy, Ivy (Drew Barrymore's character) has the following exchange with Darryl Cooper (Tom Skerritt):
Darryl: Where do you live?
Ivy: My aunt gets money for letting me stay there.
Darryl: I get the picture.
What is the picture that Darryl gets? Why is Ivy's aunt paid to let her stay with her?