I was actually wondering about this and thinking that if my horse ever gets into jumping or eventing he would need shoes. Good to know that he doesn't. He's been barefoot for about 5 years now and has great feet so i'm glad I have the option of keeping him barefoot.
I always wondered, does having half and half confuse a horse? Having shoes on fronts and bare in rear seems like it would give the horse two very different feels. Do horses ever seem uncomfortable with that setup, particularly when jumping?
I have never had a problem with just front shoes, all three of mine just wear fronts. The only problem with only having front shoes is you can't use studs [well you could but you shouldnt just stud front feet]
Both my horses are "barefoot" (hate that word makes me sound like I get "barefoot trimmers") I evented my ex eventer without shoes and only put shoes on for 1 event as it was really rocky and I eerred on the side of caution. I also use to shoe my ex eventer on only fronts when I first got him as I use to ride on the roads alot.
Never had a problem with fronts only and once even had backs only. Only because he blew out his heel.