Many people only look at the negative side of teaching.
The side that you see in the news about poor test scores, the danger of school violence, and disrespect from students. Personally, to me I think that it is all in your attitude about teaching. If you go into the field with a positive outlook towards your students and your job, people will notice, because it will shoe in your work and your care for others well being. If you have a poor attitude then that is going to show too. You will not perform your best and you will not care.