Well, this has certainly gone off in some interesting directions 😂
Just to clear up a few things because there seems to be an awful lot of projection going on.
I don't think my cleaner is poor, desperate, downtrodden or incapable of arranging childcare simply because she's a cleaner. I have no idea what her financial circumstances are, and neither does anyone else on this thread. I'm also not her employer, so the suggestions that I should be paying her parental leave are rather bizarre.
I don't begrudge her bringing her child with her. Had she texted me and said, "I've got a childcare problem, is it OK if X comes with me for an hour?" I would certainly have said yes.
The ONLY thing that bothered me was that she didn't ask and didn't mention it afterwards. That's important because I trusted her completely to have access to my home when nobody was there. Finding out by chance that she'd brought somebody else into it without telling me has dented that trust slightly. It inevitably makes me wonder what else she might consider perfectly OK not to mention. That's not an accusation that she's doing anything awful; it's simply how trust works.
As for the Ring doorbell, I wasn't "checking up on her". It's my front door camera, it sent me notifications and I looked at them. I'm not going to apologise for having a security camera on my own front door either.
And I'm genuinely baffled by the argument that because I could clean my own toilet, I somehow shouldn't employ a cleaner. I can cook my own dinner, wash my own car and mow my own lawn too. Paying somebody else to do something doesn't mean you think you're above doing it yourself.
Finally, the amount of faux concern about this poor, struggling cleaner juxtaposed with digs about me being "Lady Muck" because I employ one is quite something. Perhaps the more respectful position is to treat her as what she actually is: a self-employed adult providing a service, who is perfectly capable of the same straightforward communication and courtesy I'd expect from anyone else coming into my home.
I'm not sacking her, I'm not outraged and I'm not demanding her firstborn. I'll simply have a conversation with her and ask that, in future, she checks with me before bringing anyone else into my home.
Which, after six pages, still seems a remarkably uncontroversial boundary to me.