Central AC and opening balcony doors create pressure changes that swing internal doors shut with real force. In a quiet apartment you might not notice it, but a child playing in a doorway feels it on their fingers. Door holders and stoppers stop that sudden slam.
The hinge side is the hidden danger. As a door closes, the gap between the door and frame on the hinge side shrinks to nothing with enormous leverage. Hinge-side guards cover that gap completely and are one of the most effective safety products you can fit.
Door safety goes hand in hand with corner guards and edge bumpers and window locks. See the full plan on our baby proofing in Dubai page.