so I'm going to ask a question to people who were, was there ever a time that people bought bitcoin for the sole purpose of using it just as a currency?
People will buy bitcoin because of its price and value that is increasing. But that does not mean bitcoin can not be used as currency.
An instance is if you do not have fiat and you want to pay someone money and the person can accept bitcoin, you can decide to pay him from your bitcoin investment instead of converting to fiat first.
Another instance is when you want to send money to your family or friend in abroad and you do not want the annoying fiat payment and decide to use bitcoin instead for the transaction.
Can you see now that mnothing takes bitcoin being a currency.