Maybe it would be in your best interest to interact with a stable. Read many books, ask questions, learn more from possible caring for other horses before jumping into ownership just yet. I am by no means trying to shoot your hopes down but I'll tell ya', I have ridden horses for almost forty years and have owned them for twenty, I am still learning and will continue learning because what I HAVE learned, you will never know it all.
Wild horses differ from domesticated. Wild horses are adapted to their environment like the domestic. But, their environments are vastly different. And I do not think my horses are people, I definitely know they are in fact horses.