“Twitter IPO: Why the Rest of America Doesn’t Care”

But it’s not just that Twitter is small and unprofitable. The truth is that few people here in the States actually use the thing. The social network remains a niche product, beloved by journalists, celebrities, and a hard core of miscellaneous obsessive users — but few others.

Unlike Facebook, it’s not a ubiquitous online utility, and you’re not going to find grandma on there.

That’s part of why I actually prefer Twitter. But the problem is that almost nobody I know in real life is on it, or they started accounts and abandoned them.