A little more in it, they want to hold/control your money to run their own business and they won't be able to do that if you start controlling your own money with alternatives like BItcoin. They wont be able to manipulate many economic policies anymore if you start controlling your money. Simply they will be out of bussnies if they starts to support decntrlaized system.
Of course they want control. Why do you think they patronize Fiat? It wouldn't make sense to support a currency that's outside of their control. The only reason why some governments are supporting Bitcoin is because of the taxation benefits it provides. After all, wealthy companies have shown huge interest in BTC.
It's all about the money these days. But be aware that governments will regulate crypto "down to the bone" to make it difficult for people to achieve true financial freedom. They will control BTC through centralized exchanges and spot ETFs provided by institutional investment companies. Banks will only get bigger and stronger than ever with the introduction of CBDCs. Just focus on "being your own bank" and forget about the rest.