That has been considered. But you get into a lot of corner cases. For instance. I might suddenly need to go on a long drive. I only have 25% SoC and I will use

That has been considered. But you get into a lot of corner cases. For instance. I might suddenly need to go on a long drive. I only have 25% SoC and I will use the closest supercharger to charge up to 80% and be on my way. This way they add a cost to supercharging and people get to control their allotted free charge capacity as they see fit.