There's some stretching here, as usual.
That's a problem with the Die alte Sau, the dysmenopausal Kansas school teacher, as her female organs below the waist seem stretched too.
The laws of Nebraska and Missouri are of course different, but I don't imagine they're that different.
In Nebraska, anyone with a four-year college degree (B.A. or B.S.) in any subject can teach in an elementary or high school.....but only as a substitute teacher, or a short-term temporary. One cannot become a professional permanent teacher without the prerequisite college credits in education.
And thus no fat pension either.
This is how the Bostonian Drunkard, with a B.A. in "literature," managed to work as a substitute teacher in Massachusetts. Substitute.
I don't imagine it's much different down there in Missouri.