No, the ribbing should really be on smaller needles. You could CO the same number of sts, but go down a needle size or 2 for the ribbing, use the smaller needle for the leg, and make them shorter. Or you can use the same needle size, but CO less sts. Look at the small size and figure out how many inches around the CO is, then how many inches you want for you daughter. Then cast on that many less.