I grew up in a family that collected food. We joke about my mom that she has more food in her home now, living there only with my dad, than she did when she had all 5 of her kids living there too. If something happens, she could probably survive for about 2-3 years solely on the food she has at home.
But as a family, I would not recommend doing that, because my mom has so many piles of food that she ends up throwing lots of it. Some of it expires and some of it is hidden so deep in her freezer that she finds it once a year during spring cleaning and must get rid of it.
My dad collects other things, but we can get to him some other time…
Anyway, as the daughter of such collectors, I had to struggle with this tendency to collect food. I have not fully recovered from it, but I did find some tricks to make things work better.