I don't think much of this panic buying, particularly toilet rolls, is people thinking that they are going to need them because of the virus. It is mostly to do with the 'self isolating' factor when they know they won't be able to get out to buy them so getting them in ready.
I have a very ill relative, in one of the extremely vulnerable groups, who is not very mobile anyway, so getting additional stocks in for them in case they can't get out at all, and in case I can't get out to stock them up, but it probably looks as if I am hoarding.
I feel like wearing a tag around my neck explaining.
Pheno
PS Why is hair colour disappearing off the shelves?