I think the fact that it also a basic necessity to buy your daily items like soap, food, etc make you prefer paper money over bitcoin. Since bitcoin is impractical to use for micro transactions, for now at the least. Bitcoin is for future investments. But I think that it would become the world's currency, and that will shift you from paper money to bitcoin.
We are used on using paper money so it will be more convenient and less confusing for us. Bitcoin may offer more than what paper money can offer. However, it still have disadvantages that may affect our transactions. For me, since it is used only with the presence of internet then, it will our transactions. Some may not still embrace this kind of change and still prefer the use of paper money. Lots of circumstances may occur. Like when the internet is not available, bitcoin will not be accessible. So I still prefer the safer means which is the use of paper money.