To ask school to stop sending me these texts?

Texts* that was meant to say

I agree with this. You're frustrated with the school, but not your kids? Is it all of them being late or one particular kid? Why? It could be a genuine issue eg one struggles with time keeping etc. or maybe all of them just expect a grown up to shepherd them along to things on time.

My view is that at secondary it's really down to the kid to sort this stuff out. As you say, parents should make it possible to be at school on time, do their homework, wear proper uniform etc. If they don't do the stuff they're supposed to do at school they need the consequences to be natural and school-based not their parents to tell them off or they are never going to be independent. Schools are encouraging parents to act like helicopters and that does nobody any favours! It's not about 'schools can't win' it's about 'schools doing their job' which is not only making sure their progress 8 score is alluring to new parents.

They are letting you know so that when you're inevitably brought into a meeting and if it continues, prosecuted, you can't say you didn't know there were attendance issues.
But generally speaking, yes I hate all the endless emails from schools it got to a point where it felt like harassment a couple of years ago but I think someone had a word and they stick to emails now.

You need to parent and stop abdicating responsibility for YOUR children.

And THEN sort the kids out in the evening.

SwingTheMonkey · Today 10:59
Kids, I’m fed up with constantly receiving messages saying you’re late to class. Either start being punctual, or the sanction at home will be x, y or z…”

This. An evening or two without Xbox, hobby, whatever, they’ll soon be on time.

I’d assume anything really urgent (like unwell child), they’d phone you for anyway, so I’d just ignore these messages until you’ve finished work.

Also, it's very unfair to say that the school shouldn't bother you because you're at your workplace and so you should be left undisturbed to get on with your work.

The teachers are in their workplace, and children who don't bother getting to lessons in time are preventing them from doing their job - which is to teach and not to herd wayward children.

YABU. There are hundreds and probably more than 1000 kids at this school and yours (along with others) aren't responding to "ushering" or remonstrations from teachers. They're disrupting lessons, which is unfair on their classmates and the teachers.

Sort your kids out by using sanctions.

This is surely the right response?

Rather than asking the school to stop telling you when your DC are misbehaving and causing disruption? Being late to lessons can be really frustrating for the teachers and other kids.

I'm sure the school would prefer not to be having to send the texts out in the first place, though.

I don't think you can just abdicate responsibility for how they choose to behave once you've dropped them off at the gate. After all, when children are involved in bullying other kids, the school liaises with their parents to find a solution - they don't just let it drop because the parents are not there on the premises during the day.

Honestly schools can't win. Parent your children

Kids, I’m fed up with constantly receiving messages saying you’re late to class. Either start being punctual, or the sanction at home will be x, y or z…

what teachers have time to usher? And why should they? it sounds like a serious attitude problem with your kids, and is likely to be indicative of other problems with organisation and compliance. I don't think you are taking it seriously enough, particularly with your comment of suggesting it is up to teachers to "usher". Students who are regularly late end up in all sorts of other trouble

You have rightly discussed it with them, maybe the next step is your own sanction because your work is being disrupted.

Ask them about why they are late for lessons.
Is it all 3 of them?
Is there a reason?.

Have you asked them why they're late so much?