People talk like bottoming out a pickup is some theoretical hypothetical that only applies to people doing extreme rock crawling. It's not. If you live in a place that has rocks in the terrain, and you do anything offroad (e.g. driving across your land or whatnot), or take the sort of "4x4 vehicle required" backroad vehicles that people buy pickups specifically in order to be able to take, you're in a very real risk of unintentionally hitting your underside on a rock.
I've never deliberately set out to do "rock crawling", but just by virtue of driving my land and driving the highlands, I've hit rocks multiple times. This is the sort of stuff that people use pickups for. You need to be able to handle it, or your truck will be mocked as a toy for city dwellers.