Why Do We Use ‘Coins’ in Modern Money Systems?

Imagine you're at a store, and instead of using paper bills, you use little round pieces of metal, that's what coins are! Coins have been used for a long time because they’re easy to carry, don’t wear out as fast as paper money, and people can tell the value just by looking at them. Even though we have smartphones and credit cards today, coins still help us buy things like candy or soda.