I think one problem we're all having is that there haven't been a whole lot of people dining on the
DDP reporting back lately. Those who have reported they had no trouble doing things we know for a fact Disney doesn't care about...so that really doesn't help much with assessing the lay of the land.
We DO know that using child credits for adult meals is against the rules.
When you arrive, you will be given a 5-page brochure telling you how and where to use the plan, and one of the things it will tell you (rather poorly, IMHO) is no, you can't use kids credits for adults meals. We've also heard anecdotal accounts saying the CM at checkin took extra time to 'splain to them that they could not use child credits for adult meals. And finally, we've heard other anecdotal reports that the CMs in at least some of the restaurants have received "training" in the DDP ahead of free dining.
The question of whether you can "get away with it" depends, IMHO. I can think of at least two ways you could be stopped, and I'm sure smarter people than I who work in the hospitality industry could think of more.
The first line of defense would be the server simply saying "no." I have no doubt they would now say "no" if you had a kid with you, had a 2A/1C card, and tried to purchase three adult meals on the DDP, for example. They have other options, including all-in/all-out where everyone at the table is either on DDP or OOP. That's a tough one for the servers, but it is an option. They could also say everybody gets charged a credit whether or not they order, which is what they already do at most character meals.
The other obvious option would be to segregate the child and adult credits in the computer system. I've heard that is being done; I have no idea when it will be in place. I'd bet the farm on January 1, I expect by Thanksgiving, and I wouldn't be surprised if it's in place by the start of Free Dining. I have no inside info on implementation, just looking at their business model and making a semi-educated guess. When they implement that, it will eliminate one problem...which, I have every confidence, will be replaced almost imediately by a new problem.
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