Using 'stop out' suggests the break from school or work is temporary, not forever.

Not Permanent

'Stop out' is a personal decision and not usually forced by others or circumstances.

Voluntary Action

People who 'stop out' generally plan on returning to school or work afterwards.

When 'stop out' is used, it often implies going out for entertainment or socializing.

The action of stopping out for social activities is usually brief, like for an evening.

In finance, 'stop out' is a strategy to prevent further losses in investments.

A 'stop out' in finance happens when an investment hits a predetermined price.