Brad and Angelina take their kids to McDonalds?

OK, my question is what the hell? There are actual pictures of Brad Pitt and Angelina Jolie taking their kids through the McDonald's Drive Thru? Why? I thought celebrities were all about eating healthy so they could stay skinny. Probably they were just getting the food for the kids which is great because they get to be normal kids. I just wouldn't do it all the time. I mean they want their kids healthy too right?