Indeed Bitcoin is an asset.Since Bitcoin has the maximum number of coins available on the market, it will also be considered an asset to keep.
Bitcoin is a currency but bitcoin is also an asset since you can invest in bitcoin and earn more than your capital. But bitcoin is made to be a currency we should use bitcoin as it is to maintain its value. Though no matter what we address to bitcoin whether it is an asset or a currency we can deny the fact that bitcoin is the number one cryptocurrency and also has a high value coin in the market.