What do you think about next sentence: He had been writing poems since he was 14 years old?

I am wondering if the next one is better: He has been writing poems since he was 14 years old, because he didn't stop writing at 14. He started at a certain moment in the past (at 14), he continued after and he is still writing now.
belladana78What do you think about next sentence: He had been writing poems since he was 14 years old?
The past perfect (progressive) implies prior context with some mention of a past event.

eg, His valedictory address was in the form of a poem. He had been writing poems since he was 14 years old.

As you say, the present perfect implies that he is still alive and still writing.

But the past perfect doesn't necessarily mean that he's stopped writing.
Thank you.