Grumpy Website – a blog about everything wrong with modern web & tech
If you open more than one draw at a time you would unbalance the drawer and it would tip over, falling on you and possibly injuring your feet and damaging your stuff and the floor.This safety mechanism is not there if the drawer is embedded in a larger frame where tipping over is not possible.Sometimes it's not bad UX, it's just the thing trying to protect you from your stupidity.