Why? Because the standard response on internet message boards says not to?
This has been debunked about as often as the need to eat every 2-3 hours or the "fact" that the body can only process 30g of protein at a time.
I recommend not listening to the broscience and going off of actual science instead.
uh bro because you are waking up from a 9 hr fasted state????? why do you think it's called "breakfast" oh wait that's just bro science...