Trimming a horse young to keep them balanced will help their legs to grow straight and strong. Whereas just leaving them to grow and chip off can exacerbate already present conformational faults in their legs.
IMHO, it's never too early to make sure their feet stay balanced.
Yeah im not shoeing any of them. We never shoe the mustang, the paint isnt being riden so no shoe and same with Charlie I wouldnt even consider shoeing this early. His front feet are growing outward like skis so I figured he needed trimmed. I guess this guy knows what he is talking about I hope. LOL.
I usually start trimming babies when they're still on their dams, somewhere between 2 - 4 weeks. Much easier to influence growth and correct problems, and much easier to handle a baby holding him next to his dam than to handle a weanling. Even if all the farrier does is trim a little toe and shape the foot, it's well worth the trouble.
I would say at 9 months it's high time. Even if he's wearing off his hooves to an appropriate length, at least get the farrier to examine, watch him move, handle his feet, get him used to the rasp, and shape the feet to prevent chipping and breaking.
Well the guy is coming out on Saturday and I told him I want them done, but he seems to think he don't need it. LOL How he knows that based on just his age is beyond me, but he is going to look at them.