(06 Sep 2020, 11:06 pm)streetdeckfan wrote So as I said, it comes down to common sense, it's guidance, not a law (unlike face coverings, which operators are still treating as guidance, and not the law it is)

Just on this point, it's a hell of a lot easier currently for drivers and operators to police social distancing on board than mask wearing. 

In terms of social distancing, all the driver has to do is hit a button to change the display to "Bus Full" and start sailing past bus stops. Whereas with masks, it's a far more contentious issue - some people have genuine conditions which makes them exempt, while at the same time the percentage of the UK population with 'asthma' must be at an all time high.