The cost of it is spending more CPU and more RAM on the GC. Often it's the cost you don't mind paying; a ton of good software is written in Java, Kotlin, TS/JS,

The cost of it is spending more CPU and more RAM on the GC. Often it's the cost you don't mind paying; a ton of good software is written in Java, Kotlin, TS/JS, OCaml, etc. Sometimes you can't afford that though, from web browsers to MCUs to hardware drivers to HFT.