Sorrel's Law: After the events of Forever Mare, Princess Celestia is quick to create a law establishing mandatory suicide watches in hospitals and similar establishments, where their safety is to be ensured and they are to be treated compassionately and carefully during monitoring, either because it was asked for or because the creature in question was determined to be clearly at-risk. In the vocabulary of the common pony, the formal names is disregarded for calling it 'Sorrel's Law' or just the suicide watch law (though, there would be a different procedure for the criminal justice system; Sorrel's Law being a strictly civilian equivalent). However, most ponies wouldn't know why exactly it is called 'Sorrel's Law' because the only thing it would trace back to is a grave in Canterlot, one bearing the name Sorrel Lace and a modest amount of information regarding the sanctuary hospital patient.
(This would be much like how most people only know of something like the Amber Hagerman Act because of the murder of the girl. So, Sorrel's Law would only garner some kind of connection of the titular 'Sorrel' being a pony who killed themselves.)
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Pansexuality: To creatures in and outside of Equestria, pansexual is more of a slang than a sexual orientation. Somepony like Cadance would refer to somepony as pansexual to be courteous about their identity, while a formal document would classify them as bisexual. To call a pony pansexual would describe a pony who is sexually attracted to ponies of either sex (specifically including/emphasizing intersex), any gender, and that they are open to relationships with sapient creatures of species that could be described as notably different from them. The latter part would be considered the most important or defining part of the word, not just from how it really reflects the meaning of 'pan' but because in a world with multiple sapient species and mixed populations, whether somecreature is open to that kind of a relationship and can experience that kind of attraction is important.
Starlight Glimmer states herself to be pansexual in Wishing Werelights, but maintains a relationship with a unicorn mare, which isn't exactly interspecies. Celestia would not be considered pansexual because she lacks same-sex attraction; instead ponies would term her as just being heterosexual but with an openness to interspecies unions. Luna's status as such would be dubious because as an asexual, she'd firstly be panromantic over pansexual if she was. She shows mostly heteroromantic leanings even if she's bi, and her partner is still an equine. (Twilight and Celestia, as an example, would not be a pony-pony relationship, but they are both equines, just as Sombra and Luna are.)
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Ponies normally do not wear clothes, but not wearing any in a situation where it would be considered appropriate to is seen as having bad manners. Rarity was right to fret about them at the gala!
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Dragons do eat ponies, and a pony fearing it is realistic. However, dragons that do eat ponies are generally old and do not interact with other dragons, making them deflectors from the already antisocial/asocial winged lizards and their migratory habits.
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Foster care for ponies isn't as exploitative or risky as it can be for people. Though, ponies in foster care can still face the same problems. A pony I always thought of having this background was Fluttershy, but I never got around to writing a story that referred to it; even though I wanted to.
Her unwritten backstory is Iceverse canon as it appears here, but isn't likely to appear again: Fluttershy's parents died at a young age, and Fluttershy was quietly passed from foster home to foster home. She didn't experience any severe trauma or big, sad Batman-and-orphans kind of beginnings. She was just an easy target for bullies, extremely anxious (as she is in show flashbacks and before Twilight came to Ponyville) and did not get a lot of nurturing.
When she fell to the forests near Ponyville (which Cloudsdale was drifting over at the time), Fluttershy decided to settle there. She eventually became an emancipated minor and built her cottage into what it is today.
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In the similar backstory-that-never-came-to-be for the unused Iceverse canon bucket is that Rainbow Dash had no mother. Well, obviously she did have one, but only technically. Mare or not, I've always seen her as someone who developed isolated from feminine influences; I just never decided if she had one dad or two, probably because I never got around to writing anything relevant to her youth. Or her in general. It's a shame, because I really like Rainbow Dash.
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As Truthfully and my other scrapped AJ and Rarity story describe, Applejack's mother isn't known to be dead. Her name is Apple Rose, making her Apple Rose the Second and named for Granny Smith's favorite cousin! Though, considering how important names are to ponies, being named after a relative that is alive would not have been taken kindly. Apple Rose just went by variations of Rose.
What her life is like now is unknown beyond her having zero idea what has been transpiring in Ponyville and the lives of her foals since she took off.
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End 1#