"The next time they face a twenty-something who doesn't look them in the eye, who slouches and sighs for no apparent reason, who seems distracted and unaware of

"The next time they face a twenty-something who doesn't look them in the eye, who slouches and sighs for no apparent reason, who seems distracted and unaware of the rising frustration of the other people in the room, and who turns aside to answer a text message with glee and facility" It seems to me that any intelligent (aspergers aside) capable young person would be able to establish the cause and effect relationship between their actions and other people - REGARDLESS of how many days of their lives they've spent communicating through a computer. The point is whether they care enough about their effect, not whether they are ignorant of it.