Sadly in many parts of the US, that is how one gets access to the best public schools -- via home purchases. Many of the best public schools are in districts w/o a large number of rentals.

It’s a great idea, it means that my kids will go to school with other kids whose parents care a lot about their education. A large amount of money shouldn’t be needed for that, but I didn’t see another way to achieve that outcome.

Schools can go downhill pretty fast, and often do.

Markets also go downhill. If you really went all out with paying for it, you also need to hope that your employment will remain stable. People who are very comfortable with their job and predict no downsides are often the ones getting bitten when the market changes, as it always does.