Teaching is one of the few professions in which staff are expected to be passionate, and to care. Even HCPs are not required to adhere to such emotionally-invested standards.
Educators are apparently required to be invested in students' mental health, to deliver pastoral care, and to know where the line is drawn between what we are able to do and what is strictly the domain of professional counsellors, without any qualifications in this department. We're expected to contibute to student 'enrichment': in my day, we were told 'there's a great play on at X date that's relevant to the material we're studying - try to go and see it. To cap it all we are expected to show 'passion' for our specialist subject, and it seems to me that more value is ascribed to passion than actual subject knowledge.
We don't require passion and care from our other professions: lawyers, civil service, police, dentists, accountants, librarians, archivists, even necessarily our GPs. But for teaching professionals it seems to be a prerequiste of people's (wholly unrealistic) expectations. Also, along with the police, it seems educators are less respected than other professionals. University lecturers, for example, are the least well-paid in Europe.
No wonder people are leaving the profession in droves.