Contrary to what someone said that we will be paying exorbitant transaction fee, I have already invalidated such thesis.
No, in my most sincere opinion and intelligence, there will NOT be any high fee for us to pay. The fee we pay will commensurate with the price of bitcoin.
But that can nevertheless mean a very high fee ! Imagine that the fee is 0.001 BTC, but that BTC is $1 000 000,- for the sake of argument. That would mean that you can't buy a thing that is worth less than $1000 with a bitcoin transaction ! You couldn't buy the then-equivalent of an i-phone with BTC, because it would cost 0.00012 BTC, and you'd have to spend 0.00022 BTC to buy it with a BTC transaction.
The only kind of stuff you'd start to be able to buy with a BTC transaction, is something like a car or so.
It would even hurt most people if they received their salaries in BTC, and had to pay half of the fee (other half for the employer). Would you like $500 less on your salary just for the payment ?