People are focusing on decentralization due to various problems of centralization in the present time. Because people are currently trying to get out of dictatorship and the tendency to impose something by force. But decentralization is not completely perfect for us because it has its limitations because it is not efficient in all areas. As you shared, it wastes resources, but in the present world, resources are the most important for us. But it is also true that we become more dependent on anything and this leads us to risk.