Laz, I used to think that way until my wife started teaching. I used to give her a hard tiem about here 'short work day' and all those days off she had. Until I sat down and looked at all the BS she has to deal with.
She teaches 2nd grade. Students arrive at 7:45, leave at 2:30. There is no 'overtime' pay for teachers, they are salary positions.
Sure she gets more holidays than me, but those days where the students are off that are listed as teacher workdays, are normally 8-10 hour days for the teachers. They have open meetings atleast once per month with the parents that start at 3:30 in the afternoon and run until 8:00 at night. She is constantly sent to pointless training siminars during the year. She always has a stack of papers to grade when she gets home. Ridiculous amounts of bureacratic paperwork to fill out for the school. They have changed the report cards here, you no longer get ABCDF, or a #, you get a Below-Basic, Basic, Proficient and it's not just the main subjects, you get those 'results' for all the subcatagories of the each subject. report cards are 3 pages long for 2nd graders. Also, my wife always has a stack of government paperwork to fill out for her student's parents. She works a low income school district and is always filling out paperwork for learning disabilities so that the parents can get an extra check from Uncle Sam. In addition to all the government BS, they also have a program at the Elementary school to help teach the parents what the students are learning so that the parents can help the kids at home.
One big problem she runs into is discipline. Most of her students don't get any at home, and the school cannot really do anything but suspend them and that does nothing but give them free time at home. She has a hard time getting the 'gaurdians' to take an active role with the students. Most are raised by Grandma or an Aunt because 'momma is always drunk, high or in jail, and they have no clue who daddy is'. Another problem she has is kids in 2nd grade that shouldn't be. The school district will not 'fail' a student without the parents agreement. She has 2nd graders that can't write their own name and don't know their ABC's past P.
I still give here a hard time about how 'easy' of a job she has, but I know that she does alot more work than the $30k/year she makes.