Hard to read when they ban the books you're interested in and cut library services.

I would debate streaming services having that significant of an impact. It's likely the same impact that traditional TV used to have, especially when VCRs entered the mainstream (into DVDs, Blurays, and around the same time, Streaming).

I think mobile gaming and social media would be more likely to blame. Not to mention algorithms. Maybe it's only me, but most algorithms rarely pick out things I was interested in (it was very easy to tell that they were just ads). And as the younger generation depends on algorithms, not hard to imagine that they slowly become disenfranchised with what they're reading if it's not something they really want to read.

But the real reason behind this is the education system. High schools were effectively turned into diploma mills. There's also a lot of bullying for teenage boys that like reading in the school system, and many boys do not have a high literacy rate in public schools. Repeated Republican governments in America have decimated the education system as well.