Taking kids that age out to any meal can be an adventure. We did take them when the youngest was 6 and it was a good experience. Yes, kids are expected in all of these restaurants but if you think you'll have to constantly be on them to behave, then maybe another restaurant would make for a more enjoyable meal for everyone, most importantly you.
I added the bold to this partial quote because I agree with this point wholeheartedly. Most people answer these questions, like if Napa Rose gets mentioned, with how terrible your kids might be for other patrons, but really, I think the primary sufferers of kids in a more rowdy mood are the parents who are doing everything they can to keep them under control while feeling so self-conscious and worried about other diners' thoughts, all while trying to enjoy their own equally pricey meal that they had equal hopes of enjoying in the lovely ambiance.
I would be cautious about listening to people who talk about taking any single child at a young age. I have three boys, and I could take any of them, even the 3yo, ALONE to any restaurant without anxiety. It's mixing two or more of them together that is the combustible element! I did not have that great a time at Cafe Orleans because the kids were not into it at all, and the two younger ones just did not eat. I'm glad we went overall because we got to try the Monte Cristo and the pommes frites, but I have no plans to return with kids to such a busy, crowded, pricey place with smallish tables. So I was glad we had nixed any ideas about Blue Bayou, which was an easy decision once I learned they no longer had the pirate-ship dessert.

But to contrast, all the princess visits and unending food deliveries in a big booth at Ariel's Grotto made for a fine meal with no problems. Also, all buffets (Minnie's Breakfast at the Plaza Inn, dinner at Goofy's Kitchen, Mickey's Surfs Up) were terrific experiences. I think it's having permission to get up that helps.
