Money??

Money? what is actually Money to all people. what i know in century .. money don't really important for people. They use to giving out system barter just like changing a cow with rice.. or whatever things they wish to change. but in the real life now, money just like a part of life of a person that use for living to spend, to play around. whatever that is use now also need money even going to a wash room for 20cent. Money can actually harm a person life, bankrupt, a relationship break, and etc. Money is that important?? buying a phone, car, food, house, shopping and playing also need money. Why nature want to create money to make a lot of people suffer from MONEY. Why can't we live without using money but also got all kind of things. WHY WHY WHY???? can anyone tell me???