Teaching is essentially two jobs in one - or perhaps three or four, really!
You show up each day for the time with the children in class, but every minute of that needs to be planned and resourced. Teachers don't just make stuff up on the spur of the moment, thought they have to be ready to respond to learners and take a different approach if something isn't working, so there's that, too
And then the work that's been done needs to be "marked" - or rather assessed - which isn't a case of putting ticks on exercise books. Primary teachers get half a day a week for PPA (planning preparation and assessment) which is never enough for all there is to do.
I won't start on behaviour management, parental emails and meetings, changes to policies, professional development etc etc.
It's just not the sort of job you leave behind when the day finishes, and of you're a perfectionist it can grind you into the dust because there's always more you could do!
Sadly, when all this is explained to people there are some who will never understand and some who will call it grumbling. Like many careers, it's a bit hard to understand what's involved from the outside, but unlike most other jobs, everyone feels they are an expert because they went to school themselves back in the day.
I've been in hospital a few times, but it doesn't make me competent to tell a surgeon or a nurse how to do their job. It's the same with teaching. If you haven't done the job or lived with someone who does, you only see the tip of the iceberg.
Whenever people I met socially knew that I taught, there'd be someone smirking about long holidays, job security and knocking off at 3pm.
I used to grin at them and say, "You're so right, it's great - I can't understand why you aren't switching careers. Would you like me to send you details of teacher training providers in the area? Would you love to teach teenagers or four year olds more?"
Cue a hasty retreat with cries of "Oh, I could never do that!" So leave it to those who can and do and respect them for it.
Result.