[deckard1]

> we'd see the same problem everywhere at the same scale

we do. Every C app implements its own linked list or hash table library. The entire Scheme community is nothing but toy interpreters of various stages of completeness (you can tell a project is serious when they implement call/cc). How many game engines do you think exist? It's a meme that game devs like to spend more time on their pet game engine than actually making their game. How many ORMs do you think exist for <language-of-choice>? At least half a dozen. At least. For any given language. Python, Ruby, Go[1]. ORMs, in particular, seem to get created over and over again. Probably because they are trivial to implement and allows one to voice their opinions on SQL abstraction (bike shedding).

[1] https://github.com/d-tsuji/awesome-go-orms