I'm almost hesitant to mention it, since they're the startup-du-jour, but Airbnb is a perfect example. Can you imagine your grandparents using it? Maybe, depend

I'm almost hesitant to mention it, since they're the startup-du-jour, but Airbnb is a perfect example. Can you imagine your grandparents using it? Maybe, depending on whether or not they were hippies, but my guess is that the majority of people in that generation would be far too scared to try it out. It's definitely a cultural shift towards trust and informal arrangements.