Satoshi envisioned Bitcoin as a Peer-to-Peer Electronic Cash System. While it can and has been used for payments, its use as a medium of exchange has so far been very limited.
It has moved from being a collectible to a store of value. Will it ever move to being a widely adopted medium of exchange and global payment solution?
Bitcoin will become widely adopted only if the BTC price becomes more stable and the governments/central banks allow BTC to be widely adopted.
We have to face the truth.Bitcoin cannot become a truly global currency,if:
1.Governments don't like BTC,because of tax evasion,money laundering,energy consumption,any other FUD,etc..
2.Small business owners don't like BTC,because it's highly volatile.
3.The transaction fees and confirmation time can increase a lot sometimes.