I have a young rooster, maybe 6 months old, and he has nerver crowed. I have seen many comments on here about their roosters crowing when only a few days or weeks old. Do all roosters crow eventually?
I had one that was mute for a long time too. I think it will be very soon. Once mine started, he would not shut up.
Enjoy the silence Don't worry he will crow and then you won't be able to shut him up. My roo is better than a watch dog, anybody that comes up our drive and is a stranger he crows to let the whole neighborhood know about it.
He will crow when he is ready. Could be anytime. I waited forever for mine to crow, now he "sings" to me all day long starting about 4 AM, BUT I love it.