Earlier quoted context omitted.
Started baking bread with kids recently. They love it. But next day the leftover bread is stale. I explained that it isn’t full of preservatives. After a moment, they look at me and ask where we can get some.
It shouldn’t go stale in a day if you keep it somewhere somewhat airtight.
Which storing bread that has a crust worth preserving, I tend to make sure it gets a little air (covering it with linen cloths, for example), and accept the small amount of drying out that comes with this form of storage.