I'm father of two boys (7 & 4yrs old) and there is NO WAY IN HELL I'm going to take one of my boys on my busa. I trust myself but I just dont trust cagers let alone put lives of my children in hands of exorbitantly stupid people.
No gear in this world will keep your kid safe from being T boned at the nearest intersection.
The reason why I don't take my wife/daughter for a ride. I just don't trust other people.