Do I need to teach the buyer about the business?

As the seller, this is obviously your choice. You will likely need to educate the buyer about your business to help ensure a smooth transition and that the business can maintain its current success without you. This can include providing information about the business's history, operations, finances, and culture, as well as any other relevant details. The goal should be to provide the buyer with a complete understanding of the business and its potential for growth.

It is also important to be transparent about any challenges or risks the business may face and to provide realistic expectations for the future. By working with the buyer to fully understand the business, you can help increase the chances of a successful sale and ensure that the business continues to thrive under new ownership.