Why Jobs?

Why exactly do we need to study for a career? WHy do we need to work. If we weren't to have jobs in our life how would we be able to learn? How would we be able to have docters who can cure us? How would we be able to have firefighters that can rescue us? Would the world even have money exsisted, how would we do the things we have now. We not even have technology or even polices. There will be no such thing as a poor person or rich person, or even a smart or a confused person. If you think about it jobs could be better either way. Jobs were invented for a reason, for help, learning, protection, and even discovering. (I'm not even sure it's the actual reareason, but it's my opinion). Its even possible that the world could have beenmore peaceful without money. We could've but that means it just would have been free. It's actually interesting how the world is now and what could've been the future.