I kind of remember seeing this in a documentary. Teenage brains are more susceptible to anxiety when in front of others. They have the urge to blend in and are afraid to be observed by others. What is the proper scientific name for this phenomenon?
One name for it is the imaginary audience: https://www.betterhelp.com/advice/adolescence/what-is-adolescent-egocentrism-and-how-can-i-deal-with-it-as-a-parent/