There are certain jobs that are harder than others and some that have different types of stress and pressure.
The pressure that a medical professional feels with someone’s life in their hands can’t be replicated. To then be subject to scrutiny and criticism with little rewards or breaks - to have the NHS policies to adhere to and with strict NHS budgets and understaffing and people complaining.
The pressure of looking after someone else’s children all day, while also trying to teach them in line with a fixed national curriculum (where many don’t learn in line with set national standards), while being underpaid and having a 20 mins lunch break if you’re lucky, while being subject to (a lot of the time, unfair) parental criticism is hard.
Working a manual labour, physical and risk to your personal safety job out on a site where you could at worst hurt yourself and be unable to work again or at best, have a chronic pain from doing constant manual labour is hard. This role also usually comes with targets and deadlines and “do ABC within an hour but do it to 123 standard, which usually takes 1.5 hours”
Many jobs are hard in very different ways - I’m a lawyer and my husband is an accountant - we’re both under strict deadlines, a lot of mental pressure and expectations. We can however work from home a couple of days a week and walk away from our desks if need be - none of the above jobs can do that whenever they like. (I know more senior leadership roles in our industry also couldn’t walk away for 5 or pop out for lunch either but they’re usually compensated very well and knew what they were signing up for!)
As someone with a mum and sister who teach in primary schools, their job is a lot harder and more demanding in other ways than mine is. Schools are understaffed, so TAs on very low wages will stay behind to help out teachers with their work. I’d never ask a paralegal to help me regularly and without compensation for doing so - it’s my job!
I also know never, ever to question how hard and stressful teaching is if you’ve not been a teacher. I’ve tried to explain this to my dad, brother and now husband when my sister/mum have brought up how hard their job is in the past. We listen, we sympathise, we say how hard it must be (because it is!) and we do not interject or question it…. It’s usually brought up at a really stressful time and only results in WW3, when they objectively do have a stressful job anyway, just not THE most stressful job ever known to man. It is still stressful!!