Sainsbury's were rationing some items to 1 per customer this morning. Eggs were one of those items. My son had two boxes of six in his basket and had to leave one behind. Neither box was for him - one was for me, because we are self-isolating and aren't expecting an online delivery for two weeks, the other for his brother whose online shop yesterday came without eggs.
The daft thing was, if he had known, he could have got just one box of 15 to share between us,
I'm not complaining, because we will manage without, but there are a lot of elderly, vulnerable people out there relying on others to get them a few basics, but if those kind people can only shop for one person at a time, it is going to be a much greater demand on their time, not to mention increasing their own chances of getting the virus through multiple supermarket visits.
At least rationing might help in this respect, assuming that it was in a form that allowed for a third person to buy on someone else's behalf.
The trouble is, we don't know how long or short this problem might last!