Your kids like to do and say the same things you do. So why do parents ride bikes with their kids and they themselves don’t wear helmets? Put a helmet on everyone. It should fit like a baseball cap with no pressure felt anywhere when the helmet is worn. Most youth helmets have a fit system built in to allow the child to grow with the helmet. As their noggin gets full of knowledge, you can change the size settings to allow for more knowledge to creep in. WARNING TO THE PARENTS: If your kids become too smart, you can’t leave the size setting to stop them from gaining knowledge. It doesn’t work that way.