The Classroom Roster Rule for Data Retention

When I taught high school in northern Zambia, we had an end-of-term ritual. Old class rosters got shredded.

Nobody kept them "just in case." They had served their purpose: taking attendance, tracking grades, knowing who was in the room. Once the term ended, holding onto them wasn't thorough. It was just clutter with names on it, and names deserve better than clutter.

Data retention works the same way.

Your AI system doesn't need last year's support chats, last quarter's exports, or the spreadsheet from a project nobody remembers. When data has served its purpose, let it go. Deleting on schedule isn't destroying value. It's finishing the job responsibly.

Keep what serves the purpose. Shred the rest. The classroom had it right.

I explain frameworks; I don't give legal counsel.