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Because GCs offer the best balance between performance and productive, even when going with the reference counting algorithms path. Except for the heroic efforts from the Rust community, linear types are far from general consumption for any kind of software development. Plus, having GC does not preclude being able to stack allocate, keep data on manual memory segment, or even resort to manually manage memory in unsafe code blocks. Examples of GC enabled languages with such features, Modula-3, Mesa/Cedar, Active Oberon, Nim, D, Eiffel, C#, F#, System C# (M#), Sing#, Swift, ParaSail, Chapel. Eventually Java might get such capabilities if Panama and Valhalla actually end up being part of the official implementation. Manual memory management is required for some critical code paths, but so is Assembly, both are niches, not something to spend 100% of our coding hours. |