Looking for an suv with three rows of seats. So many models seem to have a third row of seats where the seats are basically on the floor. In checking to see if my 11 year old can 5 step test in those back rows, her knees are near her chest. Her feet are on the floor, but most of her thigh is off the seat because the seat sits so low. Is this safe? Which suvs (other than the very large suburban sized ones) have a third row of seats that are more useable?