WRT the schoolboy/MILF thing. I think the writers are either child free (ie have no idea about safeguarding and how puke inducing this all is) and/or just massively egotistical, fantasising that 16 year old boys would lust after women in their late 40s and 50s. Yes, I'm sure many teen boys have crushes on young teachers and stars in their 20s and 30s, but really, I am sure most teens consider women beyond those ages to be completely invisible, unless it's their mum. (I'm in my 50s, btw).
I'm sort of wondering if the 3 core stars, in their exec producer roles, have some hand in the storylines they are being given. Clearly this is happening with Cynthia Nixon. So I wonder whether Kristin Davis - somewhat bruised by all the criticism over her face - has had a hand in an (otherwise pointless) story where she is the object of lust for very young men, and considered very beautiful and desirable (by a demographic absolutely not interested in the programme, so will never be critiquing it).
There were, if you think about it, similar-ish storylines in the popular shows of the 1990s. Dawson's Creek, Pacey and his teacher; Friends, Monica and the young man she thinks is in College, but is actually a high schooler. And indeed, in SATC, with Samantha Jones bedding college freshman, Sam Jones. The difference is that, in all 3 of those examples, there was at least recognition that it was wrong and a completely ick. Even in the SATC episode, Samantha says to Carrie something like, "I think I'm going to bed that young virgin. What do you call that, when an older woman deflowers a younger man...?" And Carrie's swift as you like reposte is, "Statutory Rape?!"
Maybe the writers, producers and director, MPK, are all just stuck in the 1990s, and don't realise that culturally we have moved on hugely, especially wrt child welfare and the vulnerability of teens in particular to older, nefarious influences. I cannot imagine any sane mother of a teen thinking being on a MILF list and checking out teenage men is remotely normal.
Although, I will say that there's an interesting juxtaposition of the school being super vigilant about the welfare of the young man in question and his being objectified, but completely complicit in Rose transitioning and keeping this from her parents until it's a fait accompli.