When "cell phones" first hit he market, the ads said that the phones would be handy in case of an emergency. Today a LOT of cell phones cause emergencies. I've seen people crossing the street while playing with their phones, riding their bikes and talking on the phone, roller blading (today) on the street and talking on their phones, walking in a parking lot on their phones, and the list goes on and on.
While a LOT of people are "computer savvy" today, it also seems like a lot of people are senseless and either don't realize or don't care that they can be injured for life or even killed just because they were to busy on their phones. It also seems like a lot of people would be completely baffled if they lost their phones and wouldn't have "a clue" what to do without one. I mean some people even take their phones to bed with them, c'mon!!!