Because we can

It seems like a lot of times we go shopping just because they can. We may not really need something, but maybe we are just looking for something to do, so we go shopping. Sometimes we can't really afford the stuff we buy, but we don't think of that, because we have money in out pocket (or on the credit card). And sometimes the stuff we buy provides a profit for someone, but at the expense of poor working conditions and pollution for the workers, but we don't think of that either.