1. Because most people in Hong Kong use smartphones
2. Arguments for removing (any two from): obstruction for pedestrians/get in the line of sight of drivers/ take up too much space on pathways.
Arguments for keeping: keep for emergencies; add new functions
4. (i) NG
(ii) F - they own more than 2.5 on average
5. Making (selected) phone booths smart.
8. Mini libraries/art galleries/information centres/shops/ exhibition spaces/ housing defibrillators
9. They offer phone-charging facilities.