I think the government are just leaving it vague, so they can blame the public when the problem flares up again.
In the early days, I think there was a genuine concern about taking face masks and ppe away from front line health workers, which is fair enough, but now suppliers have had plenty of time to ramp up supply.
I read the government are expected to make a decision in a few days. For me, I'd make face masks compulsary, as they stop droplets so there would be some benefit.
We all want rid of this virus, so anything that helps has to be welcomed!