Too much money makes people lazy! That's what I felt on +15.
1. I had never pushed a door myself while walking on +15. Every door has a sensor and opens automatically.
2. "Oh it's too hot outside" "Oh the sun is too intense right now"....so let's just take the street pictures on +15... Why bother to step out?
3. I don't need to hold a map and think - there is a touch screen map showing where you are in every corner.
Maybe one day they will upgrade +15 with some moving belts so no need to walk any more...