I can understand Heads quitting if they're suffering from stress, but I think stories like this one are a bit
. Leaving a school completely rudderless to make a point is surely even more damaging to the kids than staying and just piles more pressure on the teachers left behind. Perhaps the school will recruit a new head who does like the assessment agenda - how does that help? Or more likely in the current climate they will struggle to recruit and muddle on with an inexperienced interim head who still has to deliver on the assessment agenda, but less competently.
Those kids don't have a choice to delay their education until the government changes their mind about all this.