What time of the year did you go? Because it does depends on when. There are less families that go outside of school time. Now certain places tend to lean more adult like France and Canada. But many of the places of plenty of kids. Also there is a trend with young kids that adults no longer give kid friendly food. So there is that too. My kids don't eat kid friendly food all that often.
Well I have to cop to that: I was there last in September. Yet I glanced at the menus at almost all of the reservation-only restaurants. Via Napoli has pizza, but so many of the others is clearly catered to an upscale, adult crowd that I couldn't imagine many families with young children (keep in mind, I mean the age range of 3 to 10) would actively persue it when there are so many friendlier options to take them too. I will never, ever stay at Art of Animation again and it's not because of anything that was Disney's fault in the slightest: it was being trampled over by families with some of the rudest parents imaginable. Completely different crowd than what I faced at Epcot... and I think that's the exact Frozen crowd who usually steers clear of that. But when you have those families for once forced into World Showcase at night, you'll start to see them accepting that Disney is forcing their hand when it comes to dining there.
Granted this is all stemming from what Frozen in WS means for crowds the entire day as well. World Showcase has a very museum-y vibe to its entirety that wards children off from wanting to go in. (families as well) Disney has clearly benefitted from preying on the more adult aspects with Food & Wine and constantly upping the fine dining experiences, but they have shown some trepidation in going all-in. Nevermind Frozen/Norway as a whole (which is basically its own thing), but Gran Fiesta Tour, O'Canada '07, Kim Possible/Agent P all seem to imply that Disney wants every WS change or improvement that's attraction-based to lean more heavily towards families as the easiest, cheapest way to alleivate the frustrated "I spent thousands on a park hopper even though my kids were bored as hell at Epcot!" crowd. (yes I know that's not the entire reason, but it's a part of it) Yet I don't think any of these things actually ever brought families tenfold into WS, it just appeased those who wandered in.
Frozen is a draw for families, and I don't think people wouldn't be up in arms about sacrificing WS' integrity if we didn't acknowledge the fact that WS, even when EPCOT Center opened in 1982 really was targeting the adult audience moreso. Future World had a bit more of a balance, it had rides with humor and whimsy. World Showcase has always been, for the most part, a stoic cultural museum of sorts. Now if your kids love World Showcase, that's great! But most kids do not, including me when I was young. I didn't start being interested in anything related to WS until I was in high school. I think most families with kids are the same way. Most of them (with their children of course) pick their spot, watch Illuminations, then leave. If the parents wants to enjoy WS, often they'll give the kids Agent P to enjoy.
Now Disney is making WS the #1 destination for families this summer, and if the ride and M&Gs are Fastpass Plus I can not wait to see what happens. Especially once Food/Wine starts up. Feels like two different crowds that shouldn't intertwine, but will.