whats the deal?

With these stupid boaters licenses? I took the 70 question online test yesterday and it took me an hour and there are all these dumba$$ questions about yachts and boats under and over 39.5 feet and boats over 65.5 feet. All this crap that is completely irrelevant to what i do on the water. Why dont they have seperate tests? Just like with cars, you need a truckers license to drive a semi, you need a motorcycle license to drive a bike. It doesnt make sense why they wouldnt separate yachts, pwc's, and boats under like 30 ft? other wise people that will never step foot on a yacht have to know all this crap about them. The majority of the questions were focused on big boat stuff. Anyways i didnt pass and so i have to do it again or just say f the test and not get pulled over. Sorry for the rant , is this boaters license thing only in wa and certain states? or is is nation wide?