a high schoolers longing for death

Sometimes when I start cleaning and going through things, finding new homes for stuff, I find junk from my past. Today I found a binder containing some Jr. high and high school English papers and other writing assignments.
In one particular high school project I mention death and dying at least three separate times. All three are obviously in reference to me dying and one specifically mentions my desire to die.
I know that nothing ever came of this but I wonder how common it is for high school students to write about death and their desires for it that it would not raise some concern suggesting to the teacher that maybe they should recommend the child to someone or at least mention it to their parents?