I hope this doesn't offend, as it isn't meant to: I think that the current "younger" generation has grown up with so many new gadgets and ways of staying in touch that there seems to sometimes be a disconnect in how the gadget v. pre-gadget generations interact. Some, not all, kids and young adults seem not to have had lessons in acceptable communication techniques (verbal and non-verbal) when communicating with older adults or in the business world.
I often think that some schools do a poor job of teaching life skills, such as how to balance a checkbook, compare prices in a grocery store, apply for a car loan, present themselves in an interview, and understand basic office behavior skills that are required to succeed. I think these things combined can contribute to the types of issues noted in this thread.