i am not really a `horse person`at all though i am happy to admire thier beauty from afar, however i will say i firmly believe horses well popular to be tamed and riden deep down they are meant to be wild and free and when they communicate they do it the only way they know how, in this case kicking! sometimes people just forget to show the correct amount of respect for animals.
i feel sorry for the family but i dont think you can blame the horse, however if it was my daughter i am not sure i would feel the same way!!!