Your money isn’t safe in a mattress. Gold - real physical gold is safe under your bed if you can get it. It need not be gold, but that is something real, expensive enough that you put it under your bed (your life savings in iron probably wouldn’t fit in your house), and likely to have value in a few years. Russian money is subject to inflation in the best case - in the worst cases various countries have done things to cash and you couldn’t trade yours in anymore.
Taking people’s savings without their permission would start a run on the banks, surely? If your money is safer under the mattress…
There are always potatoes in the dacha.
Your money isn’t safe in a mattress. Gold - real physical gold is safe under your bed if you can get it. It need not be gold, but that is something real, expensive enough that you put it under your bed (your life savings in iron probably wouldn’t fit in your house), and likely to have value in a few years. Russian money is subject to inflation in the best case - in the worst cases various countries have done things to cash and you couldn’t trade yours in anymore.