Hello! This is so sweet! Right now Protect the Child is pay-what-you-want, which for some reason takes away the buying as a gift option. If you would like to buy it as a gift for her, might I suggest supporting the charity bundle that this game is a part of? There is a link to this bundle near the top of the game page that is going on for 18 more days. It is only $5 and it has a gift option!
Otherwise, I think that sending your daughter some money and the link for this game is the best option for now.