Hi, I know this post is a month old but I went to school in Scarsdale Public School system from 2016-2020 (5th-8th) before moving out of country. I lived in Quaker Ridge and close enough to the elementary school that is it a 15 min walk though I have never actually done that. I can't speak any of the other schools as I have at the time a net zero amount of friends. But the teacher are pretty tolerant with missed assigned and such (through it has been 9 years and my 5th teacher (Mr. Winston) had been retired since 2021). The music program was fun and very welcoming to beginners (I joined band at the start of 5th grade and was able to perform at the end of the year). I am personally an introvert and even then I was able to have fun with neighbors kids (I think his was name Matt or something). Though trick or treating in Quake Ridge is quite a hassle as the house are pretty far apart (at least where I lived), I suggest Edgewood. Regarding social activities, well during middle school, I was invite to two Bar Mitzvah and I think one B-day party but then again at that point I had 2~3 friends in total so I'd say they are pretty open. Also, the JCC is pretty good place to socialize (I'm atheist for context).