You cannot sell jewelry the same price or higher price when you buy it. Pawnshop will take it half the price in time of need. Further, physical gold is little heavy and needed some secure space to hid it.

While bitcoin is really volatile but if your play it right you won't lost a penny. For me bitcoin is my value storage, ETH DeFi (0x) and Hive (hive.dlease.com) for my passive income.