Small businesses do run servers, and if they don't they will use a provider to help them with this, e.g. WP Engine and Woocommerce for small business is actually big business.  

Don't underestimate the multitasking that small business has to do, bakery or not, we have to do all the things ( I'm speaking from first hand experience here in an industry that is not software/tech heavy) . Also the bakery in my area has its own IT, and its a small bakery but also a cafe/restaurant, which has its own separate needs for IT