You see your older brother "tethering" his laptop to his phone (creating a Personal Hotspot). Why is this usually SAFER than using the free Wi-Fi at a random cafe?
A) Because phones are smaller than routers.
B) Because the phone uses a private cellular connection that he controls.
C) Because phone Wi-Fi is always blue, and cafe Wi-Fi is green.
D) It isn't safer; they are exactly the same.