Bread used to go funky in a week. Moldy in two. Now it lasts forever like a twinky. It's been a recent thing. Past ten years maybe.
Many decades ago, when I was a child “day old” bread (literally the second day) was half price and had a completely different texture (a bit dried out) from fresh. My mother walked to a regular grocery store nearly every day and only bought “day old.” In our big family it never lasted to long enough to get moldy.