I don't understand why people (including @OP) is forcing Bitcoin must be used as a currency when the founder itself says Bitcoin can be like a commodity?
I'm glad to see Bitcoin is a decentralized currency and we have a freedom to choose, not necessary to follow what people think/says if Bitcoin must be used as a currency, as a commodity, as a money laundry tool etc.
Bitcoins have no dividend or potential future dividend, therefore not like a stock.
More like a collectible or commodity.