Never.

My friend had a caveman beard by the time he was 14, it was madness.

Still don't have a decent beard and turning 29... had friends with beard with less than 14y

Had a full beard when I was around 17. I had a beard before that, but it wasn't a full one so it doesn't count.

Started shaving at around 16, it wasn't until 20 when I could grow a full beard though

      I grew a beard when I was around 15 or 16. Now I shave it very often for obvious reasons.

I am 26 and still doesn't have a good beard. Though at 23 or so I didn't have any facial hair so actually it grows fast now (everything's relative). Hoping to get a nice thick beard at the age of 40 (though it will probably be gray by then). It was a BIG deal for me at around 18 though I am over it now :).

I started noticing a decent beard after like a week or so when I was 16, at 18 it was normal.

Now at 23 Im very happy with my beard, it doesnt have the "Island" parts that a lot of people have and I can grow a full great beard in like a week or so after shaving it all to point zero.