A bit late to the party here, but if he notices Molly around, she's tough, little, and used to keeping as low a profile as possible (since she and her friends are kind of dodging both all other superheroes AND Child protective services/the cops/etc). She can run deliveries/errands/etc, it's not like she has anything better to do and I think she'd enjoy the kind-of-secret aspect.

Though I already know you have a handful, so, just throwing her out there for your perusal should he require more.