1. It's extremely easy to use once you understand what you are doing.
2. Who cares if "business want to accept it as funds". The whole purpose of Bitcoin is to hoard it like a greedy little bastard, not buy lattes or auto parts.
3. Energy costs - Who cares, the banks waste far more
4. It is independent money and the banks and governments can't do shit about it.
All these responses are correct.
Someparts - its amazing you don't "get it". But you will.
1 - Interfaces will be created that will make it super easy to use (think fingerprint access via a phone), and virtually instantaneous payments from a consumer facing perspective. (You will not see, nor need to understand what is going on behind the scenes to drive the transaction).
2. Business, and indeed, anyone, will increasingly accept anything of value, especially as use/transferring etc becomes easier.
3 - The irony is that this is what drives the value. Both the ability to create, the cost to create, and of course the total limitation on coins are what drives the value. Gold also costs money to create. On the other hand, printing dollar bills costs virtually nothing - so given these factors, what currency do you think will increase in value? Further, most of us who own BTC are not mining - rather we are holding and/or transacting. So do not be confused or put off by the expense of mining. Economics takes care of that.
4. BTC is global. And cannot be defeated by any Government as it is governed, ultimately, by mathematics. If there ever in history has been a "power to the people" moment, BTC is it. Again, by the time the masses realize, prices will be much much higher (due to a simple application of supply and demand). Governments nor banks can defeat BTC. So over time you will see a "if we can't beat-em then join-em" approach emerge. This will happen subtly, and before most know it, various banks, governments will own increasingly larger stakes in BTC.
I will say it again. Owning some BTC is your hedge on the future.