Controlling the numbers in a shop at one time helps with socials distancing, but how will this be maintained when people are queuing to get in? I can't really imagine people standing two metres apart along their high street. Maybe pre-booked time slots could help except for those who are digitally excluded.

Another issue - with supermarket shelves being stripped bare of non-perishable foods - this is going to put foodbanks in crisis.

It is all very well for Johnson to spout platitudes about what we should be doing as individuals - and I cannot disagree that we all have our role to play in personal responsibility - but I have absolutely nothing about mobilising public services and putting pressure on the private sector to make this possible. The response has to be cross-sectorial, and I am sure that charities are doing their best within their very limited means to help.