They used to say that life began at 40, but now it starts at 30 and hits the ground running. In fact, Britons make their biggest life changes during this milestone decade. Four in ten said they became more ambitious than ever at 30, while 85 per cent are working towards a major life goal. A major life event often provides the push people need to pursue long-held ambitions, the Vodafone Three survey of 2,000 Britons found. Britons make their biggest life changes, including moving abroad, during their thirties, a survey has revealedMore broadly, other triggers included achieving greater financial stability, which was mentioned by 23 per cent.