Earlier you said zero risk then you say low risk, it may well put you at low risk of infection but it is still a risk some, who may feel vulnerable, do not want to take which is perfectly understandable in my view.
That diagram produced very early and displayed at the earlier press briefings was pretty clear to me how easily the virus can spread through infection.
We have a bad situation from the people at the back of us, the daughter did have her boyfriend staying however he has disappeared now and her...
My view now is each to their own on self-distancing on the lines if you decide to break the rules be prepared to suffer the potential outcome, also, those doing this may prolong the lock-down.
We walked from Shoreham to Lancing then back along the main road and the traffic was constant to say the least, seems people are changing their attitude to not giving a toss
Unfortunately supermarkets are probably the most dangerous places to go to at present. As it is only one person per trolley I let Mrs Hut happily lead off these days.