Enforcing the follow on if available should ensure that we cannot lose so it would be foolhardy for Root not to do it. They would need to get a 2nd innings score in excess of 400 to put us in any possible bother., which they wont do in 1 day. or tomorrow. It will take at least until tea on 4th day.
Only reason to do really it is if our players have got tee times booked for tomorrow and think they can roll them over today......or rain is forecast for the next few days and we need to get a wiggle on. We don’t need to risk not winning the series from here so batting again ourselves pretty much guarantees the series win (and we’ll still win the test anyway).