I graduated from BC in 2017 and lived in Coolidge Corner, Brookline my first 2yrs out and loved it! Relatively close to campus and easy access on the T Green Line (street level trolley) but it feels more like an adult neighborhood. If you also want to do more stuff in Boston proper, Brookline is a nice in-between spot. Lots of fun restaurants, shops, and parks in Brookline too, definitely give it a consideration

Sorry, more accurately salt and snow melt chemically lowers the melting temperature of water and so the liquid water a dog's paws encounter can be much lower than 32deg F. If a snow/ice/salt solution is frozen, it is likely significantly colder than 32deg F. Direct contact with salt is indeed irritating and can dry out and chemically burn paw pads, but contact with salt won't just "super cool" them. It's the contact with colder than freezing water due to salt that is dangerous.

Boots or a balm like Musher's Secret is most important for salt on sidewalks. If the chemical snow melt and/or salt sticks to the dog's paws, it super cools the pads and is super uncomfortable. Dogs will then lick the chemicals/salt off their paws, which upsets their stomachs and can lead to vomiting & diarrhea.

Most fur covered dogs have double coats and their cores are perfectly warm despite cold temps, while hair covered dogs can get cold if the hair is cut short. If that's the case, a basic insulating layer like a vest or sweater is all that's needed to keep pups warm. Smaller dogs also get cold easier

I like Sonsie on Newbury