Cruises are great as an all-inclusive, as far as I’ve found the two I’ve been on. Although they’re very clean, some people will complain about them being high spreaders of illness… which I haven’t experienced personally. Then there’s also the environmental impact. And if you have bad motion sickness, there’s that too.
But, ignoring those issues this fits the bill for the OP image. An alternative would be an all-inclusive resort.
I mean, sure... That’s why I mentioned it as an alternative all-inclusive experience that also fits what OP was going for, as part of my original comment.
What about all-inclusive hotels? Are those a thing? Or all-inclusive bed and breakfasts? Or all-inclusive Asian massage parlor (happy ending all-included)? All-inclusive airport lounges?