the question is why would you not accept Bitcoin as your salary? It is the same ass taking cash in your local currency, it is just in another form. It would be like taking gold or silver instead of receiving USD for me.
That's a fair enough analogy - just taking different currency. The problem is, in the spirit of your analogy, how easy is it to buy groceries or fix your car with gold or silver? I'd prefer to be paid in an already widely-used currency and then be at liberty to convert it to bitcoin as I please, rather than receive bitcoin and be forced(somewhat) to convert it to buy certain things. Give it 50 years or whatever and I'm sure it'll be easier to use bitcoin every day, but for now, at least where I live, it's difficult beyond buying computer parts or certain goods online.