Odd that EUR is so small. The tax situation is much friendlier than the US in most EU states, there are more Europeans, though of course USD is more global, and they're cleverer and more attractive than Americans too.
Spare a thought for us pathetic Brits. We've never really had a proper exchange with smooth banking. £10,000 isn't a million miles away now.
The issue is the faster payments system. The banks are reluctant to deal with crypto exchanges because faster payments makes it easier for the crooks, because faster payments moves money instantly.
I guess one way around it is for an exchange to bank with a building society that is not on faster payments but uses the slower BACS system (which takes three days).