Something interesting about vr that you can't get with regular games is the sense of scale. Took me a while to figure it out but your mind automatically does trigonometry using known values to estimate distance. Your brain knows the distance between your eyes and your height and the angle your eyes are facing. From the angle of your eyes and the distance between them it can calculate how far away the interception point (ie where your eyes are focused) is. Then comparing this to how tall you are, it gives you a sense of scale: your own height being the general unit of bigness your mind uses to compare whatever value it gets from the above calculation. It doesn't give you a numerical value but you can feel just by looking at something if it's big or small relative to you. In vr you have a screen for each eye showing a different perspective, just like how your real life eyes work, so you can go cross eyed and focus your eyes on distant and close things the same way you do in real life. Your brain will still do these calculations however the relative size of your avatar to the world will be different. What it all surmounts to is if you are in a small avatar it feels like you're your normal height but everything else is fucking MASSIVE and if you're in a massive avatar then it feels like everything is a miniature toy.

>tl;dr: You can get your giantess paradise in vr by making an avatar the size of a coffee cup.