Also, a lot of people have mentioned that we need companies to pay their employees in BTC, and again we don't see much of this happening either. Again, where do most companies get their money to pay employees from? From investors. So, if they raised money originally in BTC, they'd be more inclined to pay employees in BTC.
The problem here is still the volatility issue that causes price to fluctuate up and down. Also another problem is the acceptance rate. Like I said, how many stores, groceries that we go to daily to get our necessity items including foods and stuff, will accept btc.
I give you for example. If an employee receive wage amounting to 5 btc a month. That employee has to convert to fiat in order to buy most of the stuff. Employers will also have a problem to manage their fixed overhead cost involving employee wage and they can't set the price of product right when you have btc price going up and down like that. Back to the employee, if that person get paid 5 btc and if he/she can go to any convenience store to spend their btc for stuff all price-fixed in btc amount, then there won't be any problem after all. Earn in btc, spend in btc. Sadly that is not the case.