As said, age is 21. My daughter is 33 and gets carded at WDW. She looks young, but not under 21. Disney will card, and not serve.
Please don't do as this person is hinting at and order a drink when you know it is not legal for her to drink in the U.S. The law may suck but it is the law. If she is served then the server broke the law and can get the CM, and Disney in big trouble legally.21 is the legal drinking age everywhere in the States; however, at her age, there's always a good chance she won't be carded, especially at a meal with her parents.
21 is the legal drinking age everywhere in the States; however, at her age, there's always a good chance she won't be carded, especially at a meal with her parents.

Be advised, if you (her parent) or any adult serves a person under 21 an alcoholic beverage, you may be subjected to criminal sanctions of the state of Florida.hi, we are from the UK, my DD is 19 and she is wondering how the law stands with drinking alcohol with a meal whilst on Disney property. we have a meal booked at Boma and F & W will be on while we are there.
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US law states that you have to be 21 to drink, so she would not be able to order any alcohol while here
Please don't do as this person is hinting at and order a drink when you know it is not legal for her to drink in the U.S.
Just to nitpick, it isn't actually a U.S. law, it's a state law.
Does it really matter since OP asked about drinking at Disney, in Florida? How are the drinking laws in other states relevant to this question?It isn't nit-picking. It is actually an important distinction. Laws vary from state to state. In fact, there are a number of states that permit a parent or guardian to serve alcohol to a minor in a restaurant. And many more states that allow a parent or guardian to serve alcohol to a minor on private property. It so happens that Florida does not allow either of these. So the advice provided above is correct as it pertains to Florida. But it is both incorrect and misleading to suggest that a 19 year old cannot consume alcohol with their parents in the U.S. because there are states where this is perfectly legal.
In case anyone is interested, here is a source that shows where each state stands:
http://drinkingage.procon.org/view.resource.php?resourceID=002591