It’s the funniest thing & always seems to happen to me. I have a big group of work colleagues, some of whom I work very closely with, but only 2 of them noticed my new hair colour & cut. It was looking awful before as I hadn’t had a trim in quite a few months & had a mixture of grey & patchy colours from what I had done in December. Now it’s a lovely shiny dark red & I have a longish bob which suits me better than anything I’ve tried in the past. But my friends outside of work were exactly the same & even my parents didn’t remark on it! Maybe folks don’t ever really look at each other properly, even family.