$2 million is more than enough to lead a comfortable retired life.
Eh? in my country this value only serves to buy a comfortable home, but the person will not have a comfortable life for one year with 2 million dollars.
Do not need to rush to reach $6800 or more than $7000, most countries will legalize bitcoin in the future and many companies will accept bitcoin as a means of payment.
Let me disagree with you. Each government will accept bitcoin as means of payment only in order lawfully to demand payment of taxes from the owners of bitcoins. To prevent circulation of bitcoins in the country, no one will. It is not beneficial to all governments without exception.