Regardless, both codes – and the combat sports that are increasingly popular with young people – are on a collision course with science as more former athletes are found to have died with Chronic Traumatic Encephalopathy (CTE), and lived the later stages of their lives with its awful effects.
Sports organisations have a duty to protect their participants, even ones who go willingly into the fray. Society shares some of that duty, we should encourage and promote recreational activities that are governed by reasonable efforts to protect participants.
In many ways, the science on these issues is still young. So solutions – or, at least mitigating actions – might soon be realised in the shape of protective equipment and rule changes.
But these sports are clearly at the start of a transformative period that could last for many seasons to come.