Ho, buddy, we're talking about ease of use, not cost. Don't go moving those goalposts on me.
You can consider the fees the cost of doing business conveniently, or at least being assured that a blip won't erase your life's savings.
Putting your life's savings in any single currency is incredibly dangerous and foolish.
Your entire argument is based on "convenience" and your response to losing 30%+ of the value of your "currency" on an ill-timed transaction is "meh, no big deal, it'll average out?" Hilarious.
I don't think you have any idea what my argument actually is, since you keep ignoring every post where I sum it up nicely for you.