I have 2 riding horses and am considering getting a mini. What I'd really like to do with a mini, is take him for walks around the neighborhood in the evenings. What I'm wondering is if a mini horse would like to go for walks, or would they be herd or barn sour like a big horse might be. I've heard that minis can be more like dogs. Dogs like to go for walks, but I'm concerned that a mini might not. Am I going to have to deal with the same things like barn sourness with a mini too. Would it be better to start out with a young one and get them used to this routine, or could I get a 5 or 6 yr. old acustom to this and hope they would be willing to go?