While I agree commercialism can get a little out of hand esp during the holidays. The fact is the world runs on money. You have to have it to do anything. If you don't use your own cash than you have to be consuming someone else's.
Sure you can barter for a lot of things, but most of those things you get in trade were bought by someone with cash before they traded it to you.
I disagree with this.
Money is not the lubricant or the fuel for most of the world's people. It's only in "civilized" countries that a parent pays their child to babysit their own brother or sister. Many of the people in this world live day to day without money, they eat, sleep, bath, keep themselves warm, take care of their children, grow their food, raise their animals, etc, without using money.
I would agree with what you wrote if you had written that the world works on exchange of value because for the most part it does, but that exchange of value is rarely money in places where hard currency is scarce, more often it is things like labor, food, affection, and promises.
I think Brent Swain has a point.