Are you suggesting we should close shops, Smow?
You are going shopping at the wrong time I think or not in the best way. I hate the shopping experience too but I've found a fortnightly click and collect is easy to get and so minimises the need for the occasional mini-shop at quiet times. Face coverings can hekp too.
As for having a friend round, no-one will arrest you, especially if you wear a mask and keep 2m apart, but it's saying it's not a good idea at all for you to let someone in touching your things and there is the temptation to hu, move closer, share cups, use toilet. You can meet her outside though