Of all the horses I trim, I’ve run across a few that had soft feet that wore away to nothing very quickly and needed constant protection in the form of boots or shoes. In both those cases, the horses were living and working on abrasive surfaces (rough cut sand, limestone screenings, and gravel) and there was too much moisture in the environment. Those two things together were bad news for those horses. Aldo their diets were not suiting all their needs.
Without knowing ALL the details of the entire situation there is no way to say for sure if your horse will just always have soft feet that wear down to nubs. Perhaps a change in environment would help, and maybe it won’t. Sometimes adding a really great hoof and joint supplement that provides ample amounts of MSM, lysine, E, copper, zinc, etc. works miracles on feet. Sometimes the effect is negligible.
I’ve also seen (and owned) horses who had these kind of feet to the point where shoes wouldn’t even work. They constantly chipped and broke out until there was nothing left to nail to.
When horses are having major hoof issues like this, always look to the diet and environment first. Do absolutely everything you can do to support them, and then see what you’ve got. If you’re doing everything you can do in terms of diet, environment, and trim, and you STILL have all these issues, then you can chock it up to genetics and just “do what you gotta do.” But I see SO many hooves improve when owners seriously take a look at diet. Good hay and a handful of grain is often NOT enough for horses like this.
There’s a gelding who had awful feet and the owner wanted to find a farrier to shoe him since I don’t shoe. His feet were extremely short, sore, chipped and broken, with layers peeled off halfway up to the coronary band. Every time I went out to trim her horses, I told her that she really needed to analyze this horse’s diet and environment and see what could be changed. She ended up selling the horse. I still trim him at his new home, and guess what - his feet are beautiful. All those issues are resolved. The horse is still barefoot. Never had shoes on. But the diet and environment are completely different. It’s actually been a really cool study for me - just to see how much these things can affect horses.
Just to ward off any trainwrecks - I am NOT suggesting that all horses can live happily barefoot. There are those that cannot. I’m only giving you ideas on other things to look into to see if you can support the horse further.