Video chat isn't a technical problem, it's a social problem. I have multiple ways to video chat almost wherever I am, but I almost never want to video chat. When was the last time when you wanted to video chat but couldn't? That's never happened to me.
I don't want to video chat that often but the reason is that the only way to do so is through Skype (hard to convince anybody to move to a different service) and the video and voice quality is usually really bad so yes, I do think it is a technical problem (maybe not just software though).
I'd love to video chat with my baby daughter in the mornings because i go to work before she wakes up. But cannot because due to bandwidth issues, its an awful experience. So count me as an adopter if and when video chat ever becomes good!
I think that younger generations are the same, if not more so. Texting is far less intimate than a phone call, and a video chat is more intimate than a phone call. People are going in the other direction for most of their daily social contact.
