Take gold for example - on a scale of 5-10 years it is far from stable, and this is gold - an asset with thousands of years of history, with very little uncertainty about its current and future role. Bitcoin has way smaller volume and market depth than gold, and huge uncertainty, as people still debate whether it is useless or the next big thing. Bitcoin is going to be volatile for decades, if not hundreds of years.
adoptin be the key bitcoin volatility in future, if we mass adopted and blockchain technology applied in many tech system it would not be same with gold which is only as an assets not as technology. alot people look bitcoin like gold as assets but they dont see the technology behind it. soon it will usefull in any system information that will replace old technology.