I was at Disneyland in March, the Adventure Park and I know I had 2 beers, have the Credit Card charges to prove it.
Beer is not considered a liquor apparently. Beer is a brew that doesn’t get anywhere near 20% alcohol whereas liquor is a distilled product that in some cases can rearrange the percentage symbol. Sorry, that’s the best I have been able to come up with googling around parsing the word liquor.