Same issue here, it's how the car tires are "stanced" from the factory.
The back axle wheels are set slightly inward by 2 degrees (that's what the alignment shop told me, and they do the Hyundai service in the area since my dealer doesn't have the equipment).
It looks like this when you look directly from the back or front. /---\ but much less dramatic so it's hard to notice.
The front is not like this.
They are like this to increase handling and stability on turns and such.
I live in Texas and this car has seen nothing but city/highway driving.
My tires are shot on the inside edge and I have gotten rotations every 6,000 miles and one or two alignments. I now have to get new tires at 30,000.
When I do, I'm having them alight all the wheels straight. If you want longer tire life I suggest you do the same.
It's stupid that I'm replacing them already and the dealership sells new cars with the tires "as is" and won't cover the pre-mileage wear on them.
Will there be a marginal handling loss? Maybe, but I don't race and probably won't notice.
Hopefully I'll have better luck with the next set.