One idea is to allow your daughter to make the daily decisions. Give her the gift of making it a Camino experience - and to take some responsibility for you in the process.
My 15 year old grandson and I (at 65) started from St. Jean Pied de Port last June for two weeks. We did not plan any activities ahead of time - I told him I would get him to our starting point and from there he was in charge. He made decisions about getting up, pace, stops, meals, Albergues (wifi being essential, lol). We had a wonderful, wonderful time.
BUT I never thought about the disservice I did by giving him the Camino "bug" so early in his life. He thinks we should plan to go back after high school graduation (earlier if possible). I insist that his next Camino will be when he takes himself. We shall see, since I also have the "bug" and will happily go alone or with a willing companion...