I have pictures I had to get rid of from my photo albums when I was a teen right out of high school. We all flipped the bird in a ton of pictures just because we could and our parents couldn't tell us what to do. It is called rebellion. I regret it now but at the time didn't.
Then I have a bunch of pictures of neices that put their hands up in front of the faces in every stinking picture. They did it just to be a pain in the butt so each generation has little things they do that they all will regret when older. Just grin and bear it Aks.