>>23519808Mori's grandparents were the wealthy ones. MamaMori was raising two kids by herself, and Mori was working and driving earlier than she would have been if not for those circumstances.
Grandparents paid for Mori's expensive school, which- despite the tone of the school- was a hellish experience for her. So Mori's closest family were not rich and the part which could pay for stuff may not have been begrudgingly approached or they inserted themselves.