Tequila or hard liquor just doesn't come to an agreement with my stomach. And, I don't want to get drunk off 20 beers per day. Do all inclusive hotels server champagne at swim up bar?
It probably depends on what hotel you are going to. If there is champagne I wouldn't expect any high end stuff.
I'd doubt it at the swim up bar. You may be able to get some at the restaurant, although it's unlikely to be anything fancy.
AM resorts serve a decent sparkling white- on arrival, at breakfast in fact whenever you request it.!
I've had mimosas on several occasions. I'm sure it won't be nice champagne, but I would think most AIs would offer it with with plan.