Miniature Guide Horses for the Blind

How about this? Instead of seeing eye dogs, seeing eye horses; a better alternative? Training a guide dog is expensive and the average working life of a seeing eye dog is 6 to 8 years whereas a miniature horse can have a working life of 30 to 40 years but the same cost in training. Plus they eat grass. Read more about this:

Damn Interesting • Miniature Guide Horses for the Blind