At some point in time I guess it will become either one thing or the other. It cannot stay both at the same time. Can it? Is it a healthy usage method to have it as both?
Yeah, i also believe so because it'll be very difficult for Bitcoin to remain in both features. A worldwide accepted currency can't be highly volatile else it'll affect trades. Nevertheless i believe also that Bitcoin will gain some stability but it'll be at a higher price. If it would've died, it would already. Bitcoin gas tested many extreme forms of rejections by economists, governments, etc but it has shown enormous resilience. With that, i believe Bitcoin shall have a very impressive price in the future and at that time, we'll get te stability we need to make it appreciated by all as a currency.