I saw your post about Kurloz and I have a mute friend so I figured maybe I could shed some light. You are right. In my friend's case, his vocal chord don't function properly. But he's a handicapped badass who is doing very well despite that. He's able to hold down a job, he drives, and he gets really good grades. He even plays sports. He's also a Homestuck fan and loves to cosplay as Kurloz. But mutism is a very interesting handicap, because everything else works properly. He just can't talk.
Here’s an irl handicapped badass for you guys!
That is cool, mutism is a really interesting handicap.
Tell your friend we say hi!