It's much more practical to obfuscate ownership of BTC (buy it pseudononymously with paper cash, send it through a mixer or XMR) than it is to bury gold.
The buried gold is hard to access, not portable, and you would have to be damn sure some hobo didn't see you bury it.
The buried gold is hard to access, not portable, and you would have to be damn sure some hobo didn't see you bury it.