Amazing, you and I share the same values and are in same profession.
At one point in my teaching career, I had to teach small kids of grade 3 to 5. Before that I used to teach high school students, not any surprises, I left that job of teaching kids after 17 days and I didn't even get paid for leaving it at once. But yes, it want for the kids alone, it was for every reason that you mentioned in the post. Since then I have never taught kids because it reminds me the horrors of my previous 'job' experience with kids or in a kids school in a far off village in India.
You're right that we must try everything, not thinking about liking or disliking because this way we form an exact idea about our priorities.