How old is the author? Going in I thought this was about how to form close friends into adulthood (like 30s and 40s) But after reading I’m thinking maybe this

How old is the author? Going in I thought this was about how to form close friends into adulthood (like 30s and 40s) But after reading I’m thinking maybe this guy is still in college. I think the cards for forming deep friendships are way better stacked in early 20s college than say, a work from home mid 30s professional.