Earlier quoted context omitted.
Unfortunately for me right now bitcoin has zero value. Until I can use the millions in coins to pay off my house, buy a car easily, pay my taxes and go out to eat with them, or hassle free convert them to cash in my bank, it is still funny money.
You could say the same for gold, stocks, or bonds. But at least Bitcoin has the ability to be cheaply, easily, and quickly transferred to anyone else in the world, meaning it has the potential to be useful for paying for your house, car, taxes, food, and be easily converted anywhere, once enough people are using it.
Unless you provide me a way to realize bitcoin to actual USD in non trivial amounts with the same amount of effort it would take to convert my stocks or bonds, it is as useful a currency for real life as is my current GTA V Online bank account.