How old is she? I got a Harness when my son was 4 and a full face DOT and he started riding with me. I put higher passenger pegs on the bike and I rode him to school and daycare, he will be 8 this year, hasn't needed the harness for the last 2 and can reach the regular passenger pegs. He will be riding himself on a 50cc we are fixing up soon. Look into the Child Riding Harness and you will see, they can fall asleep and can't fall off the bike.