As Entrepreneurs we get into various business transactions. And consideration must be considered. Having the characteristics of money especially paper money, what's stopping you from accepting Bitcoin for your business transactions?
1. Payment Setup (needs additional expenses for this)
2. Clients/customer (possibly no enough customer using Bitcoin as payment option)
3. Knowledge about Bitcoin ( Lack of knowledge on implementing payment gateway)
4. Fear (fear of messing up the security settings of the payment gateway)
Most people believe in not reinventing the wheel if it is not broken, although the monetary system has lots of flaws, many merchants believe that it is not broken in terms of the payment system so they want to stick with the system that is already proven rather than implementing a new payment option that is new to their knowledge.