It would be interesting to poll a number of non D&D people and ask what their ideas on what a druid was and then what a monk was. I would be willing to bet you would get very few people say a druid is an individual that can change into an animal. I'm not sure how that fits into standard European D&D. Yes, a European monk is very different from the D&D monk.The "baggage" carried by the druid is consistent with a standard European D&D setting, whilst the monk's baggage is not. And I find most players lack the experience/confidence to refluff a class to represent something other than the standard PHB version.
What I was meaning is that 'monk' is a very poor label for the class. Of course calling it something different causes a whole different set of problems.