Caroline hopes the occasion will help Max reconnect with her estranged mother. She invites Max's mother to the graduation ceremony, but her mother ultimately fails to show up.
Although Max’s mother is absent, the diner "family"— Han, Earl, Oleg, and Sophie —surprises Max by showing up at the ceremony to cheer her on as she finally receives her diploma. Key Takeaway [S3E24] And The First Degree
Determined to change this, Caroline convinces Max to study and travel back to her hometown so she can take the final test and earn her degree. Caroline hopes the occasion will help Max reconnect
2 Broke Girls, S3E24 “And the First Degree”: A TV Review the diner "family"— Han