Bitcoin was initially created as a payment method, and in some specific cases, it functions exactly as intended. However, it lacks widespread adoption and is currently experiencing significant volatility, making it difficult to consider it a true alternative to fiat currency: vendors need to constantly adjust their prices to deal with the fluctuating movements in its value.
This means that Bitcoin is primarily used as an investment, similar to gold and other precious metals, rather than as a traditional currency. Like commodities, the currency transcends the direct impact of a specific economy and is not significantly affected by changes in monetary policy.
Remember that while Bitcoin is not influenced by many of the factors that affect traditional currencies, there are several unique influences that should be considered.