You are right in the second part, but the first part is unnecessarily defeatist. You could say the same about alcohol and smoking, "they will anyway try it with

You are right in the second part, but the first part is unnecessarily defeatist. You could say the same about alcohol and smoking, "they will anyway try it with friends", yet it still makes sense to keep children away from it or postpone it. While you cannot keep kids away from it forever, it makes a lot of difference when they are exposed to it and how well-equipped they are to deal with it.