Growing up my school was all middle class white kids from stable families. Being a teacher then was the easiest shit ever and you got to retire with a fat pension. My grandfather was a science teacher and while he never became rich, he was able to support 5 kids and lives a comfortable retirement.
now however, that exact same school I went to is:
>majority ethnics from a multitude of divergent cultures
>has many students who can hardly communicate in english
>filled with autistic/adhd/ipad kids
>has transgender children
which is basically not worth dealing with for a 60k starting salary.