You paint taking drugs as something every "kid" does and drugs like something innocuous, cocaine certainly is not.

If your daughter took cocaine it has probably a lot to do with your attitude towards drugs as a parent.

I volunteer with drugs addicts and drug areas. My work along with other 10 people or so is telling them how terrible drugs are and to offer alternatives(teach them a job, organize and create a community, make them stronger against those that will try to initiate kids, offering model or reference for dysfunctional families...).

Sometimes it is really really tough job as you have to remain strong in surreal situations. But in the end it is probably the most rewarding feeling you can experience in life when you see the people you helped to recover and even prosper in life.