By removing some of the less bright members of society, this will encourage evolution, and tend to increase the general level of intelligence, thus increasing the UK's ability to innovate & compete. Costs to the NHS resulting from long-term care will be reduced.
As well as being an infringment of personal freedom & choice, the use of crash helmets promotes a feeling of safety, which is a major cause of the inconsiderate & dangerous road use exhibited by the overwhelming majority of motorcyclists.