When guys like Mark Coleman and Brian Johnston talk about their fights back in the day, they usually say that allowing headbutts pretty much meant they could throw the top game of jiu-jitsu out the window. Coleman acknowledges, though, that he never fought any high-level jiu-jitsu guys early on in his career.Quote:
How much do you think it'd change the game if they were legal? They're legal in lethwei but they've never really been decisive in any of the videos I've seen. Then again, they don't fight on the ground.
I think the game would change if headbutts were allowed again. Jon Jones actually tested the waters by throwing headbutts to Ryan Bader's chest, but got called out for it. Stuff like headbutts and rabbit punches were common back in the day, and fighters probably would have been trying to develop their use over the years had they been legal.
Why are Head butts banned? To stop Glaswegians from employing their natural default setting...
They removed them so the sport could grow, as has already been stated. Take a look at Daido Juku, it is just not getting very much growth(except in Russia) and I think it is due to the less rules. Fights get ended in Daido Juku matches by headbutt, but it would not draw a crowd like the UFC or any other Unified MMA sanctioned event. JMHO.