There are some movies like that, but there are hardly "plenty." Studios no longer take risks on expensive original movies unless some really big name (like Bong Joon Ho or Nolan) is attached, so we get a few each year and that's it. Go back to the 90s, though, and you'll see a whole lot more of those kinds of films. The majority of the top-grossing movies were either aimed at adults or just as enjoyable for adults. Jump back to the current decade and the vast majority are aimed at younger audiences. Even ones that look like they're for all ages, like this movie, are increasingly appealing more to the kids than the adults. This sentiment that "my kids liked it and that's all that matters to me" sounds nice, but it would be even better if we adults enjoyed these movies just as much as our kids, so that we could share that with them instead of just being happy for them.