Bits are currently worth too little to be used in daily life. We are used to spend values in the order of magnitude from 1 to hundreds on a daily basis, not tens of thousands.
Not so. Not only is the unit size perfectly workable there are millions of people used to prices of this order. Consider South Korea (1 USD is worth about 1000 KRW).
I like the sound of bits much more than mBTC though, but I'm afraid the value needs to increase substantially to be able to use bits in daily life.
This rather depends on how you read "mBTC". I created a
poll about a year ago to investigate and was stunned by the number of people that were actually thinking "em-bee-tee-see". I wonder if this is still the case today.