Which of these is the practice of avoiding instances of the digit 4?

rayvan, I agree. Earthquakes and fires. The nearer to ground level you are the safer it is.

what is the fear phobia questions called?

Hmmmm.... mayB this is subconsciously part of why I dont like 4's, either! I tend do dislike even numbers, except for 2. 2 represents duality and both sides for me.

that so strange.I hope one day they stop their fear