World without money

Will we ever have a world without the need for currency?
Our form of currency is by far flawed and wont bring any peace or save lives with the greed we get from it. All money does is get used on prostitution, drugs, murder and other horrible acts man seem's to repeat in every century.

Why cant we create a system that turns all classes of citizens world wide into equals or at least allow all of them to have stuff only upper class people have.

My idea would change world currencies into a credit based system where we all recieve a set Amount of $$ that cannot be traded given or exchanged every pay period by working and attending school per person/household. All students would have to work and attend classes but, they would not have to be working full time and attending classes to survive so they could focus on studies and possibly achieve something in their lives instead of dropping out of school like most people do and live their lives in a low class job.
Every pay period everyone's credit would be reset to a set amount erasing anything left over from last month.
The only reason the credit would be nessessary is so people couldnt just go into a store and empty the shelves and live like slobs.

If we keep living our lives with our current system over population around the world with advancing technology will lead to fewer and fewer jobs world wide leaving many either homeless or very poor working half the time just so businesses dont have to pay them health benefits or so multiple people can earn a basic living from half of a pay check.
Im not saying communisim is a good idea (No country should be lead by one figure who controls everything) and batering is just plain stupid