How confident are you that the child can jettison the canopy and deploy the
parachute in the event of an emergency? The parents at least should be
aware of the risks. Picture yourself at the crash scene having safely
fallen to earth as the ambulance personnel remove the body of a child,
securely fastenned into the remains of the glider. what do you tell the
parents?

Questions I have asked myself and, yes, I will fly children.
Best wishes

JohnR-K