With more ane more people entering the mining bussiness and mass shipment of ASIC devices, soon average miner will get only 0.1 or 0.01 bitcoin per day (3600 coins per day shared between hundreds of thousands of miners), getting one single BTC per day will become impossible for normal casual miners
And the default counting unit of BTC will change to mBTC (BTM), for easy counting and integer calculation
Wrong. First of all what the average miner gets is not relevant, what is relevant is that the unit of measure is practical vs prices of things. The only thing that can encourage a switch to smaller denominations is BTC getting seriously more expensive in USD terms.
Also, more and more people are not entering the mining business, quite the opposite, more and more people are exiting the mining business.