Clarence Fisher ( @glassbeed ) had a great quote in an Elluminate session I listened to yesterday.
For our parents that complain about their students learning how to become global citizens and learning digital literacy because of privacy issues, ask them "would you take your child out of math class?" (summarized)
Such a good point to bring up. It sounds ridiculous to take students out of math class because we see that as a core skill. However, global citizenship & digital literacy are exceptional important skills, ones that I would argue are as important as learning mathematics. Once you turn the conversation about technology into a discussion of the other skills that students learn through the technology you can change the tone of a conversation about privacy. We can teach kids how to be "safe" online and how to manage their own digital footprint more easily if they are establishing their presence through a safe environment.