Why not use stairs? Many low cost carriers do that for smaller planes. People who don't want to walk stairs can still wait and exit via the front but others wil

Why not use stairs? Many low cost carriers do that for smaller planes. People who don't want to walk stairs can still wait and exit via the front but others will appreciate getting out quicker. Many business travellers only use carry-on so that it doesn't matter to them when luggage comes out. And even a business class in a A380 can currently take long to deboard. Using stairs is usually safe enough, the left side of the plane tends to be clear and having one person monitoring that no one leaves the area is sufficient.