...I'm saying why use one when you don't need one. And, that you SHOULD be able to ride with only a rope halter at any given time. Not that you should always, but you should be able to control your horse that well...
Define need one. I could ride my horses tomorrow bitless and they would do OK. But if they work better WITH a bit, then it would be arrogant of me to ride bitless for my own pride. What would be the point? So I could tell others how superior I am for going bitless? If my horse is more relaxed and confident with a bit, then why would I go bitless?
If I care about my horses, I'll do what is best for THEM. And Trooper and Mia have both been ridden bitless many times - for 3 years - and they ride better with a bit than without. So I'll do what is best for them...and that means riding with a bit.