Reading
this thread a question comes up to my mind.
If in the future, you can pay with bitcoin almost everywhere, how are you going to pay? The safest way to store your coins is to use a hardware or paper wallet (properly created). But in order to pay for a coffee at the coffee shop you cant use it, unless you carry your laptop or tablet everywhere.
Using your mobile isnt safe. At least as safe as using hardware or paper wallets. So, how do you think it will be done? Transferring just small amounts to your mobile? Maybe hardware wallets will have a mobile version?
I guess, there will be new sprouting methods to transact btc, Perhaps there will be a new app also to support the new digital assets. I know that innovations are gradually changing depends on the mass trends. Mobiles are good enough but when it comes to security, of storing huge amounts, much safer to use hardware wallets as of now,