Smaller can of soda

The standard size of soda can here is 330 milliliters which is more than enough for an ordinary person to drink. During summer that size of soda can easily be consumed because of the heat. But during ordinary day that standard can can satiate 2 persons already.

Enter the smaller soda can that is only 180 ml in size. It is good for one sitting, so to speak, so there is not much soda wasted. I wonder if that small can in the picture is the product of study by Coke. Maybe the other soda brands should follow suit in order to avoid wastage of soda by the ill-sized can.