I grew up hearing horror stories about stupid people and escalators. My dad repaired them and elevators! I'm surprised I can still use one today!!! I don't put my feet anywhere near the edges, or the top of the step...nowhere near anything that actually moves!!!
I've seen parents allow their very young kids to ride by themselves. I've seen parents take strollers on them. I've seen people allow their kids to take their luggage on. I've seen a woman using her phone, trip, and take out about 10 people in front of her, going down! These are not toys!!!!!