Also people are probably used to holding things that don't matter too much if dropped. If someone dropped a 10/20/30 kg bag of rice and it landed on my toes, the bag would just fold around the foot and it wouldn't be a problem.
If someone dropped a 30kg piece of steel and it landed corner first, there's a decent chance of it just going straight through the foot.
If someone dropped a 30kg piece of steel and it landed corner first, there's a decent chance of it just going straight through the foot.