Drinking post users: do you use the Easy Riser attachment ? Or do you only use it to train a horse on it and then remove it? Or have you never used it even while training a horse to use it, and the horses still figure it out fine???
My barn has done all of those. Some horses learned with the attachment and then it was removed, some horses learned with the attachment and then it was just left on, and some just never had the attachment and figured it out just fine
It takes some diligence but in my experience they all get there some way or another.