Instead of slamming the doom and gloom, we need to know that this technology is fairly new and it is actually sad to see that it is only (so far) used in trading to keep the hype going, make a quick buck and get away with it.
Most of those who actually goes into crypto currency is that they know that the paper money they hold backs on "printing paper" (just as you have described like printing old cards) that is backed by government who enforces that usage (which ever country you are in, you are obliged to use that currency)

However from all the dark side of things happening, I keep pressing on to see the silverlining of it.
We are actually quite fortunate to witness something that our forefathers witnessed during the transition from barter trading, to gold trading, to centralised governance fiat currency trading.
Now we just need to decide whether to stand on the safe side or not.
And the fact that you are here, @streetsmartmoney , on a crypto currency blockchain social network, you must have seen a glimpse of its potential or curious about it, wouldn't you agree?