I'm short and short waisted, so low rise or just below the waist jeans fit better on me too. But I've got a butt, so they can't be too low or I'll be showing more than I want. For ex, I cannot wear ultra, super low rise, or twatgrazers, as I like to call em.
Low rise make the skinnyfat girls with thin limbs and extra weight in the gut feel better because they can buy the size they'd be in everything else if they got rid of that belly. At least some of them are now pairing those flowy tops that billow out from the tits instead of the body hugging crap that shows off their jelly roll.