I wish I'd thought of this one, but credit goes to Jeff De Cagna and this brilliant post on his Principled Innovation blog: Social technologies and The Benjamin Button Paradox. What is the Benjamin Button Paradox? Jeff explains the all-too-common, "We want our older members to be younger and our younger members to be older," especially when it comes to using social media. Go read his post, then drop a comment. As for me, I agree 1,000 percent.
Thanks for giving me a new way to look at an old problem, Jeff.