Do people even read books anymore?

I'm about halfway done writing my first book. However, lately I've been thinking maybe it's not even worth the effort, considering that my generation would rather play video games or get high than read books. I'll be lucky to get even a fraction of the readership from previous generations.

I write music in the classical style, and I know it's all worthless because nobody cares. If I'm lucky, maybe a church will sing something I wrote.