Honestly, I consider it an investment, I have never used it nor intend to use it as a currency even though that was its original purpose.
To me, an asset that is scarce and increases in value over time like bitcoin. Spending it is a waste, instead we should utilize its full potential to create greater benefits.

Overall, bitcoin is a multi-functional asset and its use depends on each person's needs. We don't care what other people use it for, we only care about ourselves.