People in their twenties with zero courtroom experience do the vast majority of the work of the US Supreme Court.

People right out of college with zero experience help Fortune 500 companies with strategy, mergers, acquisitions, process design, enterprise system implementation, auditing their financial statements, etc.

The world is run by young people with minimal experience. Their organization's procedures, checklists, on-the-job training, and occasional guidance by someone with more experience somehow make it work.

And remember that your clients are even less knowledgeable than you and your checklist.

In the land of the blind, the one-eyed person is a god.