Why would anyone chose to get paid in BTC, which they can't spend in 99.9% of the places they spend fiat? Or are you talking about that make-believe land of Equestria, where pastel ponies are happy to "transact" in Bits?
Choosing to be paid in bitcoin isn't about adoption. As long as bitcoin remains so easily liquidatable, it's convenient to use it for online payments and especially for user to user transactions. There's no bank holiday for bitcoin or bitcoin exchanges and there's no currency conversion fee for international transactions. If you had ever worked in freelance you'd know that getting paid in bitcoin is in many ways more convenient that most (if not all other) alternative payment mediums.
>easily liquidatable,
As compared to what? certainly not fiat.
>it's convenient to use it for online payments
Not in the 99% of the places people typically shop online
>especially for user to user transactions
Not sure what that means. If you mean friends & family sort of thing, neither my friends or my family use BTC. Besides, if I need them to send me something, they typically trust me for the money.
>There's no bank holiday for bitcoin
There's no bank holidays for cash, CCs / ATMs either. Or do you mean for other stuff that banks do, like finance your house?
>or bitcoin exchanges
How does that make a difference if I need banks to get my money in/out of exchanges?
>and there's no currency conversion fee for international transactions.
No currency conversion fee for fiat either. If you mean sending money to another country and converting it to local currency, then there are fees, just like with bitcoin.
>If you had ever worked in freelance
When doing that as a kid, always got paid in cash. As an adult, was always asked for my SS#/sign bunch of docs/paid with company checks. As in paper. If I demanded being paid in bitcoins, would be unemployed.