Gold and bitcoin is only similar with bitcoin in term of characteristics, bitcoin don't have intrinsic value but what makes it worth is the decentralization nature, so bitcoin is like one quick way to escape from fiat system that make most of us poor. Gold has the intrinsic value not only because it is precious metal but also gold is needed to make some electronic component.
Dont forget that BTC has finite amount, gold does not , it is mined all the time in variety of mines.
Also there is good amount of concern that gold amount in circulation is not real, it has been inflated by banks who sold the same amount over and over again. ( speculation)