I would say it is entirely parents inculcating a love of reading in their children. Kids could live in a library, but if they never read they wouldn't receive

I would say it is entirely parents inculcating a love of reading in their children. Kids could live in a library, but if they never read they wouldn't receive any benefit from their environment. That was the issue I had with the article. The author wrote it in a way that suggested the mere presence of books produced an effect. I believe the presence of books offers no benefit whatsoever unless kids read them.