In theory social planning can be effective. Yet, government struggle against lobby. In particular, they mostly failed to avoid an environmental disaster, to reduce wealth inequality (in the US) and avoid wars. In reality, a group of peoples push for change, then some politician may follow, then government follow, then lobby adapt and kick back. The term “planning” is misleading in this regard.
Due date? Really?
Actually their is some way to do that with external services like https://www.ethereum-alarm-clock.com/. But ETH smart contract do not really have a way to “wake up automatically”, they are function that need to be “called”.