They're also impractical for larger planes — you'll only use stairs on an A320 or B737. I've disembarked from a B777 via stairs following an emergency landing.

They're also impractical for larger planes — you'll only use stairs on an A320 or B737. I've disembarked from a B777 via stairs following an emergency landing. The stairs were narrower than the ones for a smaller aircraft, and much more wobbly. We were limited to 3 people at a time on them, so it was very slow. The 777's door is also considerably higher up, about 5m vs. about 2.5m. Size comparison: https://imgur.com/gallery/bxyI0Er https://imgur.com/gallery/bxyI0Er