I guess enforcing helmets and a saftey course is counter productive if you value the increase of people using bikes. I understand, this is something you're passionate about and it's better for the environment and overall health of the community.
What I value more is not having children with lifelong brain damage. Adults can go ahead and make their own bad decisions. I don't agree that accessibility should be prioritized over saftey of children that have no road experience and underdeveloped risk assessment.