What are the reasons, why people use Cash or Credit Cards / ATM / Banks?
* Work offline 100%
* No fees.
* Accepted for Food Shopping & Micropayments
* 0 confermations time
* 0 exchange risks
* anyone is able to understanding of the value of payment
Cash or Bitcoin it is the same, they are same money. They used to buy products. But the thing is they have different medium that have been use and different functions and characteristic.