What you have to understand is that its very difficult to tell how old someone is now days, for a bouncer, barperson or anyone else working in a off licence. a slap of make up and that 16 year old spotty kid now looks over 18. If you are caught serving alcohol to anyone under the legal age not only could the person serving be fined, but so could the owner and who ever it is that holds the licence. In worst case situation the venue may even loose its alcohol licence. The person buying it would probarely only get a slap on the wrist. In the case of Hurricane's its the Bouncers job to make sure no one under the age of 18 is allowed inside the venue. That means asking for ID of anyone looking under the age of 21 usually, and I have been to other bars where if you don't have ID your simply not allowed in, be it 18 - 65. The sarcasim probarely comes from the amount of abuse these people get each night from drunk people.
As for Hurricane's I too have never stepped foot in the place and probarely never will. I think its totally the wrong sort on venue to have inside a Disney Resort, with so many family's around.
