My 6 and 9 year olds did fine on the DDP. We just got back tonight from 4 nights at POFQ. We ate at 5 table service places (paid OOP for one), 3 of which were buffets, so plenty of choices there, but at the Grand Floridian Cafe they each had the kids' steak (which is supposed to be $2 more than the regular kids meal price, so I expected to pay $2 extra for each meal, but we were not charged) and at the Sci Fi Dine In they had the kids burgers and were fine.
Counter service was mac & cheese with applesauce and a corn muffin at Sunshine Seasons in Epcot, breakfast pancakes and bacon at POFQ, hot dogs with grapes and applesauce at Flame Tree Barbeque at Animal Kingdom, and grilled cheese with applesauce and grapes at POFQ.
For the most part, I really liked the new kids menus, and my kids loved the Mickey head shaped plates with the fruit/veggies in the ears.
Incidentally, I know there has been much discussion about adult and child credits being separated, and while yes, they are definitely separated for table service meals, they are not separated for counter service meals, at least not that the guest can see. With the table service it's obvious, it comes out as separate receipts, but with counter service, it is all together, and when it shows how many credits are left at the bottom of the receipt, they are all still pooled. I wish they would separate them, as it was hard to keep track of what was left. I think we used an adult credit to pay for a kids meal today, but without going back and making notes on who ate what when (family of 5, 2 real adults, one Disney 13yr old 'adult', 2 kids) I don't know how many were adult and how many were kids, as sometimes we shared meals just because we weren't all that hungry at the time. We ended up leaving with a few snack credits and 2 counter service credits unused.