I would think that injecting botulism into a child's face falls on the side of harmful, but I did drop out of med school
That would be my first thought but I really have NO idea about what harm it may do. One could make the same argument about the damage that contact sports do to kids. Many kids are KILLED every year playing sports. Then you could say that allowing a 16 year old to handle a car is abuse. Putting a kid into the MOST dangerous situation there is.
It is the idea of teaching a kids that there are more important things than substance in their lives that is the REAL danger. That is, however, NONE of my business.