Bulletproof glass has a thickness between 7 mm and 75 mm.
A bullet fired into bulletproof glass will pierce the outer layer, but the layered polycarbonate glass material prevents the bullet from absorbing energy and protruding from the final layer.
In the case of armed attacks from the outside, although bullets cannot pass through the Doctor Glass Glasses, they can pass from the inside to the outside. Thus, it allows a defensive response to the armed aggressor from the inside and outside with a weapon. No bulletproof glass has these properties.
In a fire that will break out in a place with standard bulletproof glass, people cannot break the glass and go out. Loss of life in a fire can lead to great disasters.