Patience is needed. Back in the days of the dot com infancy, people struggled to come up with many uses other than just "reading" and "communicating" for the internet.
That Ah Hah! moment will eventually come in a form which would probably take everyone by surprise, and our descendants will be as amazed as how the blockchain didn't use to exist, just like our kids today cannot fathom the idea of a pre internet era.
That's a very good point. Things take time and it will probably not be tomorrow that we see the usage of the blockchain technology in everday applications but who knows... maybe we don't have to wait that long :-)