If you don't have to take time out of your life, spend money, and are also blessed with the amazing ability to switch your brain into monkey mode - then sure, you've got a point.
But if you're taking your family and spending a stupid amount of money and time in the hope that the film is not just pretty colors and lights splashed on a screen... I'm going to have to disagree with you.
I can still vividly remember my movie outings at twelve years old (or less); E.T. Jaws, SW, Empire, Raiders, Close Encounters, Blade Runner, The Thing, American Werewolf in London... I could go on and on. All far superior films with far superior scripts and I didn't need monkey brain to enjoy them. In fact, they taught me thing about life at 12 years old.
But if monkey brain is good for you, that's fine and okay. But don't get on your high horse if others expect more from their "entertainment."