There is nothing like a risk-free passive savings. FIAT has (well-known) tradeoffs. Bitcoin has its own tradeoffs. In general, world (and your money) are decaying into chaos. People must accept that preserving their purchase power (aka savings) is their second job. Bitcoin is great because it is pure monetary premium (no utility), digital, scarce, uncensorable. Bitcoin is awesome. But many things could go wrong for Bitcoin.