If all you want to do is plod around and never teach your horse properly, keep using a halter and lead lines.
It's like trying to do delicate, close work while wearing gloves. The bit isn't a torture device, it's used for communication between horse and rider.
I think I am going to disagree.
It is very
possible to perfect fineness, and precision with no bit. I will admit it might not be as
easy, without direct communication to the mouth, but it sure is possible, depending on the rider.
I leave wearing a bit-less bridle, or a bit, up to my horse. If he responds to one better, that is what I train in.
It is also very possible to to do more than just "plod around" while wearing a halter. Amazing things can be done on horses, without a bridle, or halter on.
IMO, if the horse is good in one, like, if he responds to bit-less better than bit for instance, then he will be more precise with bitless, then with a bit. Again, it depends on the horse and rider.
I'm sure you have seen some riders ride a horse without anything on them, and you watch as they do spins, immediate stops, galloping, to cantering, to trotting, all without any bit in their mouth. THAT takes more precision than anything.
Horses that are rode without anything on them, like a bridle, or bit
, actually have to follow the riders cues 100% to do the exercises, they don't need to rely on a bit to tell them what to do.