I think what you will see is adoption similar to steemit. The blockchain is in the background, users experience the interface not the madness in the background. From what I understand though the weakness or hacking potential is the link between UI and blockchain. This is how a few exchanges were hacked through the "tunnel" between digital currency and fiat. Using blockchain.info app is easy. I think it will just change the culture where people will actually write down their crypto keys and put them in a safety deposit box.