Yes they are the same. They are not what.
All of the ground pins on a board are connected, they are equivalent and interchangeable. It doesn't matter which one you use.
True, all ground pins on the Arduino are electrically the same. But preferably when you are dealing with high current or inductive loads such as relays, you should use the ground pin closest to the power source. That is one of the two gnd pins next to the Vin pin.
Inductive or high current loads shouldn't be using grounds on the Arduino board at all. They should be connected directly to the power supply, with a star ground topology to return only signal grounds to the Arduino board.
So much for your claim that Arduino will not drive an inductive load. I would call for magnetic relays and inductive load.
We should refer to best practices. Not teach them how to do it one way, and when it causes a problem tell them they shouldn't have done it that way.
Teach good habits, and you do not have to reteach the same thing over and over again.
You have a hard time teaching because you're having to reteach over and over again.
I find it much easier to teach someone how to do something if they never done it before, or have never had any instruction from anyone else.