Horses and Babies/Kids

So i need some opinions of some moms or moms to be what you would do? My mother in law LOVES horses she has 3 and Im having my daughter her first granddaughter in march! 💜💜 She is already buying things for her to ride the horse with and talking abour having her get her own horse and be in competitions. I think horses are beautiful amazing animals but she was and her husband have been both injured by 2 of the 3 horses. So i of course worry about everything and i worry about my daughter being put on these horses so is my husband i will definitely allow my daughter to expiernce some day when shes older horses but i just need opinions on what you would do or have done or a good age for a child to be around horses?