Ok now let me give give you a quick realistic bite:-
Since you have gone for first time outside India its better not to have such a quick judge regarding all the humans around the globe.
1. Humans outside India, most of them are more civilized and organized more importantly. If there is a technology who is facilitating people in many good ways, they respect it and most importantly avail the benefits out of it rather then thinking to pick it it up or messing around with it.
2. Yes there are privacy issues but boy after coming to Taiwan at least I definitely feel people here at least wont mess up with it.
3. It has not been completely commercialized yet, yet in testing phase in many corners of the world.
So lets wait and watch. Mr. Grow up!!!