Absolutely @kemoglo.
Art, science, religion, politics, sports, the PTA, anything. I do not care what people use the app for, that is up to them. The key is they are using the blockchain apps which is much better than just talking about what is going on.
As for the understanding, I agree. The best way to learn is simply to use something. By getting involved with Steem, as an example, there are real use cases that newer people can start to understand. It is a process since none of this is really easy.