Little Marcus isn't using a click track to synchronize his drumming in the picture to the left.No - those things over his ears aren't headphones, they are ear muffs to protect his hearing from the "excessive noise" he is making.
This picture comes from one of those "you have got to be kidding me!" type articles.
This one has the headline "Preschoolers suffer from excessive noise - survey"
What I don't get is how generations of Kids have survived preschool without maximum noise level limits being set and protocols for monitoring of them to ensure that they are adhered to in place as recommended in the article.