I assume you're asking why we have both Coins and Paper Money. The simple answer is that coins are much easier to use and more durable, especially in small denominations because those amounts are used much more often.
For example, most transactions involve a few pennies here and there. If there were a one-cent bill you'd be carrying dozens of them after a while, and they'd wear out very quickly from all the handling. The government would have to print tens of billions of 1-cent bills every year just to keep up with demand. 1-cent coins, however, last for 40 or 50 years on average so it's a lot easier and cheaper to make them from metal.
When you get to higher denominations, it's more cost-effective to print bills because they don't get used as often. That's why $50 bills sometimes circulate for 30 or more years before they wear out.
The place where things become interesting is when you're dealing with low-denomination bills. $1 bills are needed A LOT in change-making, so they wear out very quickly - anywhere from 12 to 18 months on average. It then becomes expensive to print all the $1 bills needed which is why many people are calling for them to be replaced with a coin that would last 25 or 30 years. Most countries have already done that; in fact, Canada has $2 coins and the EU has €2 coins. For a number of reasons, political groups in the U.S. have lobbied in favor of keeping the $1 bill even though the government estimates it would save about $500 million to $1 billion a year if we used a $1 coin instead.
coins
Russia uses both paper and coins.
Canadians use coins and paper money.
Coins and paper
You should use paper coins because galleons are actually coins.
Yes. Both.
Coins and paper money have been in use for millennia so there's no recorded history of their very first use. Coins have been traced back as far as the Lydians in the 8th century BCE, while paper money was introduced by the Chinese during the Tang dynasty (7th to 10th centuries)
Yes money is made from paper. But not the paper that they use for fake money. And coins are made from metal or copper....or even bronze. Money is made from paper.
No, all of the United States' states use federally-minted coins and federally-printed paper money.
The first people to use paper money were the Chinese during the Tang Dynasty in the 7th century. The government issued the world's first official paper money to reduce the need to carry heavy metal coins.
Pounds, Shillings and Pennies, mostly sterling silver or gold coins, (no paper money).
Chromium is a metal. We use it in making coins.