They don't need to. We are all early adopters.Many of us believe that one day owning a single coin may be a luxury unobtainable by most of society. That doesn't mean they won't adopt it eventually. They will simply be buying mBTC instead of whole coins. We are all taking a risk here, and those who jump in later will pay for the lower risk in the form of higher prices for smaller denominations. Since btc is divisible to 8 places, why are you worried about the 99% at all?