What were the most significant social policy changes made by the Liberal governments from 1906 to the start of WWI?

From 1906-1914, Liberal governments in Britain introduced several major policy changes motivated by their desire to reduce poverty. The most significant changes fell into two categories: protecting vulnerable groups who were unable to work and creating legal protections for workers and insurance for workers. These changes represented a move from a laissez-faire approach to 'New Liberalism' and invovled active government interventions aimed at improving the lives of working-class citizen. One most significant areas of reform were the introductions of policies aimed at improving the wellbeing of vulnerable groups, notably children and older people. The Children Act in 1908 was particularly signifcant because it made it illegal for children to work in dangerous jobs and reduced the number of children being sent to adult prisons though the establishement of juvinille courts. Similarly, the government introduced old-age pensions in 1908 in recognition that without the means to support themselves through work, many older Britons fell into poverty. 

Interventions aimed at improving working conditions and the lives of working class people included the Workmen’s Compensation Act (1906), the limiting of miners’ working hours to eight per day (1908), the Shops Act (1911) again limiting hours of work, and the Labour Exchanges Act (1909)  which helped the unemployed find work. Alongside these interventions, the National Insurance Act (1911) provided benefits (initially health and unemployment benefits) to workers, although importantly, their families and non-waged people were not insured and still needed to rely on the Poor Law.