I went to college in the USA, and none of my classmates had any idea what WhatsApp is. Funnily enough, my US university's "international office" (the departmen

I went to college in the USA, and none of my classmates had any idea what WhatsApp is. Funnily enough, my US university's "international office" (the department that deals with international students including facilitating visas, travel signatures, SEVIS, resolving other confusions of international students etc) setup a WhatsApp group to communicate with all international students because that's the one app all of us had in common.