It's not my child, child's friend has disclosed to them. My child has to come to me for advice.
My advice is not get involved. My gut says I shouldn't get involved either and I won't.
I didn't realise until tonight that this seems to be illegal. As they are under 18. But unless its distributed I guess unfortunately under 18s do this.
In reality, unless it's shared what would happen if it was found in the child's possession? They are both 16.