6. When the banks or the governments realize the potential of blockchain technology, what will stop them from creating something similar? Even same code by changing name like buttcoin, fuzzcoin, shitcoin, and put also a hard number limitation.
They are already trying, but for me it looks like just an experiment and attempt to look cool. Blockchain was designed to be decentralized and permissionless, if you remove those properties, you end up with a very inefficient database without any unique benefits. And government-issued cryptocurrency will be just as useless - even if they ban Bitcoin and other crypto, most people won't use statist coins. At least in Bitcoin you are paying high transaction fees for your financial freedom.