Stepfamilies are now the fastest-growing family type in the UK, with celebrities including Kate Ferdinand opening up about their experience as a stepmum. In fact, it’s estimated that one in three of all families are now what we’ve come to call blended families, according to Happy Steps, the research-based stepfamily resource centre. Yet stepmothers still get labelled with outdated stereotypes, portrayed as wicked on outright evil in films and fairytales.