I agree. When my dad and I went to WDW when I was 10 it was just WDW and Epcot, DHS opened shortly after we were there. We spent part of a day in Epcot and only in Future World. My dad would have liked to do the world showcase but thought I wouldn't enjoy it so we didn't do it. He probably also didn't want to do all the walking

Finally visiting it as an adult I can see why he skipped it because there really isn't much there specifically for kids, but that was always the point. There are ways you can enjoy it with your kids and I'm not saying kids don't enjoy it, but adding IPs in Epcot just for the kids is a bummer, especially when it doesn't seem the least bit educational (GOTG). I'm all for Inside Out being added but they can do it well and the movie wasn't just for entertainment, it had a great learning message.