Barbara, when Walt Disney opened Disneyland in 1955, he wanted it to be a family-friendly "dry" park, and this tradition continued with Walt Disney World. As new Parks sprung up on both coasts, adult beverages were added to the menus there. However, it wasn't until
Be Our Guest Restaurant opened in 2012, that Magic Kingdom Park loosened their restriction. Now all table service restaurants in the Magic Kingdom serve wine, beer, and cocktails; however, this does not apply to quick service establishments, which remain alcohol-free (except for Be Our Guest which is a quick service restaurant at breakfast and lunch and does serve alcohol). My favorite non-alcoholic beverage in this Park is LeFou's Brew at
Gaston's Tavern, and it is made with frozen apple juice (they also have some mighty fine cinnamon rolls).
When visiting the other Parks, none of the Starbucks locations sell alcohol, so this would include the Trolley Car Cafe, Creature Comforts, and Fountain View Cafe- however, besides breakfast items, the food selections at these locations is limited. In Epcot, all of the quick service restaurants serve alcohol with the exception of a few of the snack carts, like the Funnel Cakes Cart outside the American Pavilion. Disney's Hollywood Studios also has only one option, the Neighborhood Bakery which has some snack and dessert choices. Disney's Animal Kingdom Theme Park has the most choices such as Eight Spoon Cafe (known for its unique mac & cheese), the Harambe Fruit Market, and the Caravan Road kiosk.
One thing I do encourage you to try, Barbara, is
Mobile Food & Beverage Ordering. I use it every time I get a Dole Whip from Aloha Isle, and it works like a charm!
Eean