One of BTC's strength, which is its deflationary nature, is also one of its greatest weaknesses. Like gold, its most valued utility is as an investment and a store of value if one was willing to take the volatility. But theres only one way BTC is going. Up.
With that said, tell me, are you willing to spend your coins for your daily needs? Then prove it. Because I dont. The opportunity cost is too great.
All currencies are assets as well, this is something usually forgotten and as long as bitcoin performs a better job being an asset then that is the use people are going to give to it, bitcoin as a currency is not very good, that will change in the near future but we cannot deny the best usage of our bitcoin does not come from paying our bills it comes from holding and trading and as long that is true that is what we will keep doing.