I'll be traveling to China soon, specifically to Wuhan, and I remember reading somewhere (I don't remember where, unfortunately) that it's only possible to exchange USD for RMB in China itself - is that true?
Or if not, is it just a much better idea to do the exchange in China for some reason, e.g. exchange rates?
And a bonus question: can I expect to find a trustworthy English-speaking exchange agent at the airport in Beijing, where I have a layover, or in Wuhan?