ask peopel who survived the last Great Depression. Boxes of mony stored away or buried in the yard. My dear Uncle still keeps his savings hidden in a wall.
The world has changed from the depression era. How do you pay bills, pay property taxes, utility bills etc without a checking account?
As far as safety goes, no one could get past my dogs and even if they did, the safe is totally hidden and secured. They'd basically have to tear down the house to get to it and they better bring some heavy equipment to move it. I'm sure my neighbors would notice that and call the cops ; )