How did children get so messy after school?

At the end of the day, when we pick her up from school, she will have messy hair. She say I didn't bun her hair tight enough, but when I use the tight band she say pain. There will be smudges on her face, smudges on her white shirt. If she's wearing the sports t-shirt it will have smudges or pencil marks on it. Her shoes will have black spots here and there. Her pinafore is wide (she's wearing size 26 from Kimnovak) but short, already above her knees. So her knees will be black as well from all the sitting and kneeling in the school hall before school starts. Usually one side of her pinafore will drop off her shoulders as she has small shoulders. This is the description of our little princess when she comes home from school. No photos as she didn't like us taking photos of her when she is not "ready" :D