Why tax when the cost is already there in the form of hardware and electricity?

I prefer not to have 2FA. I only activate it when there is a need of increased limit, and deactivate it afterwards in order to avoid the risk of losing mobile phone, and thus any bitcoins.

Once all bitcoins are mined, the fee of miners will go up, as they will only be getting incentive in the form of fee from those who are transferring bitcoins to each other. Moreover, the huge volume of transfers will compensate for the charges borne, and they will still be paid a handsome amount.

Moreover, since no new bitcoins will be mined any further, the price of bitcoins will shoot up!