Probably the biggest problem with being a small business owner is right there in that phrase. Small.
Small means few or no employees. Small means you end up doing most, if not all, business tasks yourself.
Whether or not you're any good at them.
But even if you ARE perfectly capable at completing those tasks, is doing them really a wise use of your time? (Just because you CAN do something, doesn't necessarily mean you SHOULD.)
As a business owner, you should be focused on the big things