Younger heirs of wealthy families are urging parents to donate fortunes faster, moving beyond traditional charity. They champion impact investing, advocacy, and tackling root causes of social issues like climate change and racial justice. This shift, exemplified by MacKenzie Scott's approach, emphasizes trust-based philanthropy and partnership with communities, rather than imposing pre-set solutions. With trillions set to be inherited, this generation is reshaping how philanthropic capital is deployed.