[usrnm]

Custom allocators and arenas are possible in go and even do exist, but they ara just very unergonomic and hard to use properly. The language itself lacks any way to express and enforce ownership rules, you just end up writing C with a slightly different syntax and hoping for the best. Even C++ is much safer than go without GC

[KingOfCoders]

They are not integrated in all libraries, so for me they don't exist.