Skinny jeans - how much of your butt do you cover? 👖

I remember seeing a fashion tip ages ago saying that your top should come to halfway down your butt when wearing skinny jeans and I thought it was ridiculous because that makes my butt looks awful. I was talking to my sister about it and it turns out she follows that "rule" which I was pretty surprised about because I'd never noticed. She's super slim naturally whilst I'm a lot curvier though so maybe it's a body type thing? This really isn't important but I'm curious as to how you wear your tops when you've got skinny jeans on

Personally I either wear a short top to shoe my whole butt or a longer one to totally cover my butt because mid way looks daft. I'm pretty curvy and mid way just hides my shape.