As of today, the bitcoin currency is not stable and we didn't expect it to be stable in few months or year. That's the reason why cash is much better than bitcoin. Cash currency is much stable and more dependable than btc.
It is because those fiat(cash) currencies are having regulated by central authorities of the government and so they control the inflation of the local currency that's why it doesn't get out of hand because they will either withdraw or pump in more of the fiat to regulate inflation and the same cannot be said of bitcoin because it is left to itself to either appreciate or depreciates and this doesn't make bitcoin any less.
people desire a0 regulation actually, so their work will not go in vain, currently they still trust in it,
but i dont, because the current financial system just lends to the super rich, and enslaves the poor to sell them their time so they can become even richer,
cryptoeconomics gives us all the opportunity to free ourself form this communal elites, slavery