I would guess the driving factor is TypeScript's powerful inference capabilities. You can write generic functions all over the place, with multiple (sometimes i

I would guess the driving factor is TypeScript's powerful inference capabilities. You can write generic functions all over the place, with multiple (sometimes interrelated!) type parameters, and you rarely have to pass explicit type arguments when calling anything. TypeScript will just figure it out. This removal of overhead when using complex types probably makes people less averse to creating them in the first place. Rust has a similar story.