Each week , Good Weekend ’s how-to column shares expert advice on how to navigate some of modern life’s big – and small – challenges. This week: How to go grey. Andie MacDowell has gracefully graduated to grey hair. Netflix If you want to stop dyeing your hair, you can just stop. What’s so hard? The resistance, says Jules Peacocke, director of Sydney-based silver specialist salon Lily Jackson, is due to a little thing called the patriarchy. Official figures aren’t kept, but the industry estimates that about three-quarters or more of Australian women dye their hair, mostly to mask the grey, which they fear screams old and irrelevant . In our culture , a woman’s attractiveness depends on her looking youthful. Silver-haired men, on the other hand, feel little pressure to sit in a salon for several hours every four to six weeks to “touch up” their hair at a cost of $250 or more.…