Is creating module using closure function a good practice?

Question

It is known that closure is used to make variables within a function private and persistent.

We assume I use closure to modulate smaller functions, would be considered good practice? If not, what would be the best way to create a module preserving the privacy of some functions?

Follow firsthand code written by me:

Remark: I’m not sure if closure is the correct name for function below.

function ModuleCharacterCounter() {   

    function characteCounter(nome) {
        console.log(`O nome ${nome} possui ${count(nome)} letras`)    
    }  

    function count(nome) {     
        return nome.length     
    }

    return {     
        start(nome) {
            return characteCounter(nome)
        }    
    }

}
var counter = ModuleCharacterCounter()
counter.start('José')