I'm addicted to my wife's son's nintendo switch
What do you like about it so much?
It is so much fun that I want to take it for myself.
Well, it isn't good to take someone else's property.  It is also not cool for an adult to be addicted to a video game.
You are just a religious person who doesn't understand what is cool.
I think that you should as before you take the switch from him. You should not take another person's property with out asking them first.