So that's one, in my opinion very big problem.
Second, people are just not aware of what power the EU has. And the politicians I speak to actually see this as an advantage. One told me specifically that without power like this we would still have the insanity of driving on the left of the road in Norway, or would still have the separate currencies (which of course, would also have prevented a lot of problems in Greece, Italy, Spain, Ireland and Portugal, and provided better lives for probably 100 million (!) people).
So that's the second part. Nobody cares about the EU, because there is no unity. Europeans don't feel part of Europe. They feel they're part of France, Belgium, UK, but not of Europe. So they don't care. There is little to no local presence of any EU agency.