Sounds good to me. Wish I had alot of money to donate.
It doesn't need to be an outright donation. You could buy an annuity. Many colleges, universities, hospitals, and churches do this now. It is like a retirement fund.
You buy the annuity in one bulk payment, or contribute monthly over many years, and when you retire the annuity pays you an agreed upon monthly allotment. This money is used to support your retirement. When you die, the capital that remains goes to the charity.
My husband and I have bought an annuity through our church. We get to live on the interest and some of the principle, and when we die our “donation” ( what remains of the capital) goes to our church. This way we can be generous to our church and still make reasonably sure that we have enough retirement income coming in monthly.
People do not need to be rich to fund private K-12 education. All that is needed is for someone with the know-how and the leardership to set it up.