It's not a matter of "can" you do it, it's a matter of needing to do it. Do you make a habit of carrying a gallon of water on your head? You probably don't need to. I don't need to either. I certainly don't need to spend $3500 for the privilege of carrying a gallon of water on my head. Doing so is not necessary or beneficial to my life in any way. I could do it if my life depended on it, but it doesn't.

If the Vision Pro was balanced on top of the head, it would definitely be easier to sustain for a longer period of time, but the weight is attached to the front. That means you're holding it up with your neck muscles instead of straight down your spine.