In what way is it of immediate use to someone walking down the street right now? What can they buy with it, apart from drugs and some random token products sold in makeshift websites? There is NOTHING the Bitcoin provides for which the Dollar in their pocket isn't of more use.
You need think this through, kid. Really.
What immediate use is a stock portfolio to the exact same hiker? Gold futures? A timeshare? There exist several sites which will happily take bit coins and deliver items from newegg and amazon. Just like Visa will take your dollar deposits and provide a similar service.
Moreover, there is now a mobile android app which allows you to spend (and receive!) coins while walking down that street. Even a street without an ATM. So your original point is invalid in the first place.
Bitcoin adoption is growing, not shrinking. Value is being added to the ecosystem at a rapid clip. It won't be long (real world time, not bitcoin time) until $14/share seems like a pretty good value to the average Joe.
All that's needed is a bigger community. A year ago it was < 3k. 30k people is a slow but steady start. Six months from now and 300k you'll see more businesses accepting bitcoin and real FX trading it -- early mainstream bitcoin adopters are likely to be affluent, have disposable income and like shiny gadgets. In otherwords, an ideal market for many businesses. A quarter from then and 3 million users will have mainstream get on board. At that point 300 million and FDIC insured banking is only months away, and 3 billion weeks away from that.
30 billion might take a while though.
This is all within the realm of possibility *IF* (and that's the only IF) we continue with the current trends. There are plenty of factors which could kill these trends, but none of them have materialized.