All pastries are premade which mean that you don't need to spend valuable time preparing the daily production. All you need is one hour of preparation time every morning. During the day, you need to re-bake which only take you 20 minutes, and everyone can manage the baking.
As all employees learn how to bake and brew coffee, etc., after a few days education, you will be able to run your shop(s) with minimal management. That means that you can focus much more on sales and expanding.
You will only have a limited number of items and only a few vendors, so you do not have to spend a lot of time on ordering. It is also easy to plan and order ahead.
The start-up costs and the time to get started are very attractive. All you need is 1-2 weeks of training and education, and you will be able to open your own pastry shop.