A decade is no age for a language, though. Creating a language with compiler can be done very quickly, but creating a good language with a good compiler and a good standard library takes time. And then it needs to catch on. This requires about a decade++.
Scala is 12 years old, Go is 6 years old and Clojure is 8 years old.
Scala is 12 years old, Go is 6 years old and Clojure is 8 years old.