In a free market, we don't dictate what someone needs or doesn't need. We believe the individual has a right to choose amongst options that are presented with truthful claims. If someone pays for it willingly, they needed it. If we start attempting to break down all the extrinsic motivations for purchase decisions, we'd see almost ALL of them are dictated by social acceptance, comfort, and convenience. This is a feature of a wealthy nation, not a bug, that we can seek out goods and services beyond basic food/water/shelter/safety needs.