Jenifer wrote:
> How can you justify making new languages
> that no one uses when so many languages of culture are fast dying?

This reminds me of the time I wanted to learn Hebrew.
Classmates said: it isn't spoken anymore,
why do you want to learn it, why don't you learn Ivrit?

About justifying your conlang: this is my standard answer:

"I can't justify."

Normally people are shocked and ask:
"Then why do you make languages?"

I answer:
"I just like it. Tell me one activity that's nicer?"

No matter what they answer, I just say
 "incorrect, conlanging is nicer".