Why would someone hate to read?

People who hate to read scare me – but I want to know if you can give me reasons to turn my fears into understanding…what can be a reason why someone (maybe someone you know/knew) would hate to read (inability to read NOT being a reason – that’s an obvious sociological response)? As a secondary question: what have books done for you in your life? I know, for me, reading has provided incredible relief in times of darkness.