Being were in San Diego Ca. we only have tracks to ride at unless going to the desert or OHV areas out in the sticks. It is dangerious for an adult to go out onto a course with other children riding unless it is nesesary. If a child can pick up the bike but cant kick start it then electric start is a great tool to have. If you trust your child enough to ride a gas powered bike then in my opinion the child should be able to start the bike on his/her own with no help. Remember this bike is to learn to ride on.
If the child doesnt need electric start then good for him/her. I ride 450 and 250 motocross bikes and have no problem if it has a button to start it. Especially when im racing