二十年前加拿大已经有在地铁站以无人兼无门出入口。就是搭地铁你要自己买车票他们鼓励trust system believe system. So people will do just some Asian won't so they cheat ticket. But for Singapore that isn't willing system but forcing system so it train their people will do it within their country but outside Singapore they may not do.
Yea, it all comes down to the mentality and upbringing of each individual. Doing the right thing despite 0 surveillance, that's the key. Self- responsibility.
The Amazon's store promote that they can use facial recognition to detect what you take from the shelves, and they even know if you take something, then put it back, it will then charge to your Amazon account, yes you need to register with your Amazon account to enter, there is no need for customer to check out and pay, you are supposed to take something from the shelf, and walk out. If their system cannot detect that I take the item from the shelves and walk out, that shouldn't be taken as stealing
The trick is to find out the sweet spot between consumer finding it "okay" vs sluggish service. Don't make them too annoyed. Then there wont be any complain haha.