Lowering the age limit for senior kart classes would be great, as long as that child has a certain time of race karting experace. Karting it shrinking not growing I think there is a Safeway to include experance under age drivers in senior classes specially at a club level.
But what we should be talking about how can we start kids at a earlier age
I think if the industry would start kids at 5 with special size karts and engines with electronic radio kill switches help get more involved.