I guess in current times the best use case of Bitcoin in my eyes and in the eyes of most hodlers is that it works pretty well as store of value and can grow in value overtime as more investors start investing money in Bitcoin.
Although, it can still be used as a payment system and it's used that way on daily basis but the best one can do with Bitcoin is by holding it for long term to gain some profits from it.
If we survey the use of Bitcoin, I guess a majority of respondents would attest that they are using Bitcoin as an investment. Some people do not care about privacy or controlling their finances, so the decentralised attribute of Bitcoin is not appealing to them. Most of us just want to keep our money in a safe asset and wait until it appreciates before we sell.
Yes, most view bitcoin as an investment rather than any of its use cases. I asked some people if bitcoin became stable, would they continue to stick with it and use it? Or they will quickly look for another alternative investment account. Even though many people say they will continue to stick with it even when it stabilizes, I'm skeptical of what they say.
I would like to add that I think investing is completely different from storing value. Investing means we can have profits or losses but for a store of value it needs stability so I don't think bitcoin would be the ideal store of value.
Few businesses accept Bitcoin as a payment option but most people still prefer using Fiat for daily transactions since it is stable and widely used. Maybe in the future Bitcoin's value might be stable and more nations will legalise it, which might make its daily use more popular.
Some people are excited about businesses or organizations accepting bitcoin payments, but how many people would use bitcoin to pay instead of traditional payment methods? Because as I see it, we all just want to hold bitcoin for profit, very few people want to use it except in emergencies. So I never expected or believed that bitcoin could become a popular currency or payment method.
If in the future bitcoin becomes stable, it is also unlikely to become a payment method, it could be a store of value, a safe haven like gold, IMO.