There isn't privacy...it's a transparent ledger. There is potential anonymity. That's different from privacy.

I said they might lack the will and knowledge. It's not necessarily laziness. They might be oblivious that you can. They could find it economically not worth the transaction costs. They might need to transact relatively quickly and not have the time, etc.

If you create a car and that car requires the driver to be an engineer to drive it, spend more money and time than any other car to use it, maybe you shouldn't blame the customers. 

Maybe your car just sucks.