There was a period of time in my mid 20s when me and a close friend ot mine lived across the street from each other, and what you said here resonates with me strongly.

It is such a massive boost to quality of life to just be able on a whim to send a text like “i am tryna grab some food+drink in 15min, you down?” and actually make it happen more than half the time (and being able to receive similar texts from the friend too). Lots of spontaneous interactions and (barely-any-)planning for just normal low-pressure outings was absolutely my favorite part of that time period.

On a sidenote, I absolutely despise the “guest spreadsheet canva invites for an event scheduled a month in advance and endless emails booking a band” way of regularly doing social stuff. It is totally chill and reasonable to do so for special occasions and bigger events, but having it as the primary way of socializing makes me want to drill a hole in my skull.