As someone who's been to a lot of all-inclusive resorts, I can say that beaches definitely are not all-inclusive. Here's what you need to know about all-inclusive resorts and how they differ from beaches.
All-inclusive resorts include your room, meals, drinks, and often activities in the price of your stay. This can be a great value if you're planning on spending most of your time at the resort. Beaches, on the other hand, are public places where anyone can come and go as they please. You'll need to bring your own food and drink, and there may be an entry fee to use the facilities.
While all-inclusive resorts can be a great way to save money on vacation, they're not for everyone. If you like exploring new places and trying different things, a beach vacation might be a better fit for you. And if you're traveling with kids, keep in mind that many all-inclusive resorts have age restrictions for guests (usually 12 and up).