BTC = ASSET against inflation, Risk Hedging. Its Decentralized nature is very commendable compared to a single currency controlled by one nation.
In fact, btc could be Gold, Silver, Gun or Gun Powder and any sensitive nation will let it be in the hands of others.
As of today, 18 states in the U.S. are pushing for btc reserve bill.
After El Salvador, Brasil, Japan and Taiwan are all in for BTC reserve.