The windows are fake
? These people are stupid!
I'm watching all this peach mint footage and all the windows that they're smashing seem to not shatter like real glass would. Wooz news's video highlighted stage glass being used with the fake babbit shooting. The whole thing was fake. ITS ALL FAKE
Addition: Was talking about these funky plastic looking outside windows https://youtu.be/CEEEMB0c5So
There are types of glass and even films you can apply to windows which prevent them from shattering normally. I'd imagine the Capitol has these windows reinforced to prevent someone from being able to smash it normally.
Windshield glass. Has a layer of plastic sandwiched inside that prevents the glass from shattering.
Even in schools, they use reinforced glass on metal doors to make sure a school shooter can't open a door by smashing the window. It's metal wire inside the glass.
Also, many new windows and doors are tempered glass, which is tough and resistant to chips or cracks, but if you apply enough force, it completely shatters. This is the glass that makes your side windows in your car. I imagine the capitol didn't use this, but the prevalence of tempered glass is giving young people a false impression of how glass normally breaks.