A state that puts public money into the market is making a wager with other people's taxes. The instinct behind a sovereign-style fund is sound stewardship — wealth gathered patiently grows, and a 3% withdrawal cap is a real guardrail against a legislature raiding the principal in a lean year. But the same fund exposes the public treasury to market downturns, and 'we will eventually replace your taxes' is the kind of promise that outlives the politicians who make it. The wise man keeps treasure and oil in his dwelling; the fool spends it all. The citizen should weigh whether Missouri has the discipline to leave the fund alone in good years and bad, or whether a market fund simply becomes a new pot for the connected to reach into.
"There is treasure to be desired and oil in the dwelling of the wise; but a foolish man spendeth it up."
— Proverbs 21:20 (KJV)