Maybe sometimes bitcoin looks like gold, because it has a high price, but bitcoin also can be said very easy to get like cash. Maybe bitcoin is a combination of both, so can be said bitcoin is cash and gold money depends on the use.
Yes, bitcoin is a combination of these two phenomena. This is a coin and payment system. But now I use more bitcoin for investment. I buy bitcoins and just hold them, then to sell more expensive
You are saying that most of the bitcoin community use it only in investment purposes, but that is not true.
You can find many articles in cryptocurrency news websites where it is said that someone bought e.g car or a whole company.
I would also tell that still, the things are you talking about can be defined as a digital gold, which is because you also use this precious metal to invest your money, and most likely get returns.
So i think that you may consider bitcoin as a digital gold, because you may just simply get great profits on both of the assets just by holding them.