Yes, that is often the hope - that a long time staffer would buy the business. But those folks usually don't have the means.
The business next to me tried that at first, with a long term employee paying over time. Eventually they did find an outside buyer. That buyer may now be out of luck now. The current owner told us he laid off all his employees and will be pleading with the landlord for a deal on his rent April 1.
Think I remember Munro kind of gave his business to his staff. I know it is more complicated than that.