Anyway my father didn't mean that electrons DO NOT exist? But that you cannot grasp or touch them, like a mist?

Hi Anyway, how is your father? Just like your ol' Dad saying something outrageous again!!!

That isn't a question, its not even logical.

Electricity works when a Current is sent through a wire

You would know about it by grabbing the Live end of one

The Electrons dont actually flow, like water

 When excited they excite the next electron and so on

Eletricitity is best when used in Series and Alternating Current

Electrons on their own take on the form of Plasma, such as Lightning or Saint Elmos Fire

They can't be 'touched' like a stone or water but they can be moved and influenced by electric or magnetic fields.  I spend my life counting electrons for a living and making them tell me everything they could.  It was (and is) fun.

Good for your father.