The beauty about bitcoin is that it can make transaction from every part of the world provided you have an internet connection and you can also make very large amount of transactions without anyone knowing who you actually are. And it is considered digital gold because gold is a valuable asset however they called it that because bitcoin with just few years of existing compared to gold has grown rellay fast in value while it still has the transaction features like gold. Gold is actually a currency and also an asset which stores value and bitcoin also is.