I would suggest a 7 year old who ‘won’t’ read, probably can’t. Have they been carefully checked for dyslexia, including Meares-Irlen colour spectrum glasses? Its commoner than you might think. If children don’t enjoy reading, possibly something is amiss in either the teaching, the books chosen, or undiagnosed dyslexia? (of which there are far too many). In my opinion all children should be checked in their fist school year for both kinds of dyslexia. It would save a fortune in the long term, and stop wasted years of detesting education.