Do not allow children to sit on escalator steps. You will eventually reach the point of departure and their clothes may get caught between the steps and the landing. Always be watchful when accompanying children on an escalator. This just makes common sense. If your confined to a walker why would you want to ride an escalator.
All buildings have alternatives for handicapped people to get around.
Namely the elevator. NOT baggage and freight. If you must take baggage on an escalator make sure the bag is light enough for you to pick up and not become unweildy when going up or down an incline. And if you're one of those people who make deliveries to buildings do not take your 2 wheel dolly full of freight up the escalator. With the glass sides and other high priced embellishments, one boo-boo on your part could make for an expensive day for your company.