Answer:
I would talk to them first. I would try and convince them not to and help them get off the cliff. If they already did then I would call for help and explain to the family what had happened. I feel like I wasn't much help or feel like it was my fault somehow
Charcoal is a limited drawing medium (like pencil) because you can only create artforms in a Monochromatic scale - Black (your charcoal medium) to white (or whatever color your canvas is). It has a single color value and is irreversible once used.