The solution to this is don't send your kids to public indoctrination camps where they learn this behavior, otherwise known as public schools.
When charging your Tesla, here is a balance between efficiency and convenience when adding power to it - fast vs. efficient.
While supercharge your car, there is about a 4Kw or ~5%, usage on your battery to precondition it for fast charging. If you fail to fast charge ahead of time, the car will do it anyways when you plug into a supercharger, and it will take longer.
Charging at home using a L1 or L2 charger forgoes this because not as much power is being added as quickly, and no preconditioning is needed.
If you want the most efficient charge with the lowest overhead, charge at home using an L2 charger.
I have panels at home and I try to charge in the most efficient manner to avoid extra Kw usage - if you have cheap power then none of this is a concern, but the power where I am is expensive.
















