most trading currency pairs are exchanged along with GBP-USD, Every time someone starts talking about currency trading they usually only use EUR-USD or GBP-USD as a reference for currency trading pairs. so people are always discussing this couple only. so beginners start trading with this couple. In addition, this currency pair is also great for trading because of their volatility and eur / usd is the best couple and my favorite pair so Europe is a very rich economy and the population is so small that in this country every day thousands of eur are swapped there because we can get a lot of money easily from eur / usd pair and if we use simple strategy then we can make money easily without loss.