We just need to use it and wait for it to grow. Just compare the market caps of any company of any country that has a play in a fiat stock exchange... 60 billions at minimum vs the few 11 billions of Bitcoin.
Yes if people will continue to used it and spread it out all over the world it will grow faster. Sooner or later bitcoin will consider as number one cryptocurrency in every country. This can beat other type of money in every country because of its price.
I agree with you.Bitcoin for sure will surely increase its price to its maximum and by that time,people would be so eager to use bitcoin because of its high price.Nevertheless,bitcoin will top from all of the cryptocurrencies exist.