Sadly, yes. Look, there is a reason we are the world's fatest nation. We have some of the most fast food joints. Do you want to know how much your kid is really eating? Lets take a look at some of the most popular places:
McDonalds: If you get just the cheeseburger meal for your kid, that is about 515 calories. http://www.mcdonalds.com/us/en/food/meal_bundles/happy_meals.html
Wendy's: Although, if you got the exact same meal at Wendy's, it would be 650 calories. With the Cheeseburger, white milk, apple slices, and fries.
http://www.wendys.com/en-us/kids-meals
Chick-fil-A: If you go to Chick-fil-A, and get the same meal, but nuggets instead of the cheeseburger, it is 645 calories.
http://www.chick-fil-a.com/food/meal
Del taco: In the hamburger meal, it has 520-630 calories.
http://www.deltaco.com/menu-kids-meals.html