We spent a joyous evening with my kid sister, her partner and their four football obsessed boisterous boys. She is the only one of my siblings never to have married. Her partnership has endured longer than any other in my family where divorce has been the depressing norm. Their humble home is south London is warmed by love and respect and my sister rules the roost with gentle discipline and a dogged determination that her boys will be decent people. She is a chip off our mother’s block and she is succeeding.