If you want to run legitimate business first you have to know what is the regulation about it in your country and how is with paying taxes otherwise you might have some troubles. You also have to be well provided with goods you would like to sell and what would be the most convenient payment system. Daily payments are tricky and maybe not the best choice.
If its business enrolled government with the any country, them how they can use bitcoin there. It is not yet centralized right. One they can if they do any worldwide transaction. That they can achieve through bitcoins for personal uses. Still big investors only investing on blockchain plant to make their business more secured from the hackers.