Why not?
As a human being who speaks English and also likes to read it, I can’t think of a good reason. Perhaps it’s a matter of patience, or adaptation to the style and idiosyncrasies of Victorian Lit, or a general will to wade through the depths of sprawling sentences and descriptions, in order to fully immerse yourself in a new world. Or maybe Dickens just isn’t for everyone. I don’t know.
I’ve only read two of his novels, and a few of his short stories, but the impression this small selection has left upon me is one of staggering stupefaction. A Tale of Two Cities knocked me on my ass and moved me to tears. For me, Dickens works, and I couldn’t be more excited to explore and expound his writing.