I agree this is a problem. Of my four children, my 17 year old is a type 1, and my eldest, who is 22 and lives at home with me, has an autoimmune disorder which puts her at high risk of complications even with normal flu, I'm unsure if her exact illness puts her on the government list of most vulnerable people but her consultant has definitely advised her to isolate herself and not get out of the house at all. It's impossible to get food delivered, as all slots are taken, and she can't register as a new vulnerable customer with Sainsbury. This means we need to get out of the house to get food from the shops, which in turn means that within the house, to protect my daughter we can't be anywhere near her even with no symptoms, as we can't be sure it's safe. Saying 'get food delivered' or 'get friends or relatives to shop for you' sounds fine, but is over-simplified advice, I can't see who I'd send out shopping for my entire family on a regular, long-term basis, a friend could help here or there once or twice, but this is about feeding a family of 6 with coeliac restrictions for possibly 12 weeks. The best way to do this is for us to get out and get the food, but the price to pay within the house, with my daughter having to be alone in another room for those 12 weeks, is high.
I'd seriously ring your local supermarket branch and ask to be put in touch with the Manager. Might take some time but it's worth pushing. You are right though. Considering supermarkets are restricting some items, understandably, if you ask a neighbour who is off for their family shop to do your family shop it makes life very difficult. Might be worth seeing if there is a community group in your area. It's so difficult but it's hard to blame the Government or Supermarkets as this is unprecedented and there isn't a rule book for this. I hope if nothing else once this is all over no matter when it happens that we then prepare in all essential services for the next one.
RReyes - If I were you I'd make contact with your Union if you are in one. Our Teaching Union were ones who sent all diabetics home last week!!