> When I say the government needs to raise more money, some people ask why Melinda and I don’t voluntarily pay more in taxes than the law requires. The answer is that simply leaving it up to people to give more than the government asks for is not a scalable solution. People pay taxes as an obligation of law and citizenship, not out of charity. Additional voluntary giving will never raise enough money for everything the government needs to do. If Melinda and I signed over our foundation’s entire endowment to the state of California, it wouldn’t be enough to fund their public schools for even one year. A vibrant economic system depends on setting expectations for who pays how much.
https://fiscal.treasury.gov/public/gifts-to-government.html