i can not imagine if bitcoin is become my salary for now, because for now, i still use fiat rather than bitcoin. i use bitcoin just to hold for a while and buy altcoin in trading, but in future if there is many store offline and online available in around my city, i will accept bitcoin as my salary and its not problem for me.
We can afford to receive salary in future if we have enough places to spend them directly without converting them to fiat, but at a moment it would be a wrong decision to get paid in bitcoins.
but the main problem is not about how much place that we can use bitcoin directly there as a tool to pay the bills but also the volatility,as you know every online shop that selling stuff and accepting bitcoin will always having fixed amount of bitcoin equivalent to certain dollar and the amount of bitcoin will be changed depend on the bitcoin's price,and the volatility really matter in this case
But even if price is fixed, and if the price of bitcoin goes higher then we have to pay less number of coins to buy anything and that can be profitable and if price goes lower then it can go the other way.