Bitcoin is money and thus serves the same functions that any money does: a medium of exchange, a unit of account, and a store of value.But can it prominently satisfy all these functions?
It is not really fast right now, because of the blockchain issues, and the fees are way too high.
Imagine that you have to pay for a every single thing with bitcoin, if you would like to buy matchsticks, the transaction commision would cost evem more that the product bought!
But after all, it is very secure store of value, still more better than a regular fiats: but we need changes to develop it ultimately.