What do you think?

Bad idea altogether! 'Judy' should not be there unless it is in a professional capacity or at the very least, with the advised consent of the parents who are in entrusting their children at the daycare center. Otherwise. the center is open to a world of legal exposure should anything go 'wrong'. 'Judy' and the staff\administration need to put her status (even unpaid) into a more formal framework (i.e. informed to parents), for the benefit of the company, the kids, and the rights of the customers (parents) involved. Blessings...