The best thing I like about the bitcoin is that you can use it everywhere and that its also untraceable, no one is controlling it expect you that are having the power over your wallet.
I think you can not use bitcoin anywhere for the moment, but I do not know if in the future be able to be used anywhere, but for now we are still limited to using
Exactly we cannot use bitcoins everywhere at a moment especially at physical places as there are very few places that accepts bitcoins and that is also limited to certain countries and not sure what will exactly happen in future.