The thing that pushes us forwards is more and more business adopting Bitcoin as payment.
It won't become a real currency when it swings +/-10% in the time it takes to confirm a transaction. Bitcoin is completely useless for commerce as long as it's having days like this, it's a purely speculative instrument, nothing else.
The chance that a micro bitcoin payment is made twice is so remote, that any commercial party will accept the payment merely by it being registered in the network. That happens literally in seconds.
You don't understand or you don't want to understand.
A currency has to be stable enough to be effective. Bitcoin is volatile and it's a bad thing for businesses who sell goods and services.
The volatility is doing a lot of harm to bitcoin adoption by vendors.
The transactions have dropped off significantly:
https://coinbase.com/charts