Father in laws new wheeler

yesterday my father in law bought a new 2014 Honda rubicon. (which he got the rubicon because he has a jeep rubicon silly I know) and the dealer told him to turn off the fuel and let it run out of fuel after every use if it won’t be ridden in in about 7 days because it has a carburetor. is there any truth to this? I can understand if it is to be put away for the winter maybe, I would add stable. what is your thoughts? thanks rick