horse walking cross, two handlers leading

Question
hello sir, why few horses walk cross when we are leading them? in this case, two handlers come into action. i mean, one leading from left, the other leading from right. may i know why two handlers lead those kind of horses?

Answer
hi well here in the us we have one handler per horse and he always leads the horse from the left side of the horse. other countries have 2 handlers and that probably works good for them. i think one handler is sufficient to lead a horse. thanks ED HESS