Is this a sign?

Came across this banner ad while looking up the ingredients in my prescription cough syrup (made me absolutely craaazzzy btw). If drawing on your face with marker is a sign of ADHD in children then ALL kiddies between the ages of 18mo – 3yrs old must have behavioral disorders. It is only natural for children to draw on their faces, cut their hair, dismantle toys, etc… I think artist SIA does a better job at conveying the underlying meaning of facial markings and proves to me that it is perfectly acceptable for people of all ages to draw on their faces.