With people locked at home (can’t shop on a regular bases), and that half the population needs to use toilet paper every time they need to go to the bathroom (frontend and their backend).
That does not include what they use for makeup, or if they use it to blow their noses with.
While it is said the other half of the population only needs to use TP on only every third trip.
So the panic buy to make sure they have enough to last, especially if they can’t go to the store and buy for (cause of a lockdown), is BIG.