Why we need money or extra money?

Money is important in our lives because every material thing in this world has a price and we need money to buy or to have those things. Sometimes I also think that we don't need money. I just hope people are willing to share. Like for examples, farmers will share their crops and the construction workers will share their talent in making house. But then again, I think no one will agree to this.

so what are you doing in life? without money or monthly income is it the life of homeless. what to eat drink...etc. my friend money is important in our life it is not all the life but without money this well not be the earth we know

Money is needed to pay for food, clothing and shelter. Without these three basics it's impossible to sustain your livings. Furthermore, we need them to cover expenses for children education, bills, etc. If you're looking from different angle, it's not a demoniac invention but a tool for us to make life simpler and easir.