I see "fishing kit" listed on a lot of BOB contents and while that's all fine and good, I'd suggest you try that fishing kit on a nice sunny day when everything is going your way, just to see if it will work under ideal conditions.
A great many of us on this forum live in CO and most CO fish are measured in ounces, not pounds. The vast majority of pictures I see of 'fishing kits" in bug-out-bags are wholly inappropriate for fish that exist within the state of Colorado: a 12" trout cannot open it's mouth wide enough to eat a size 1/0 hook, and will not be fooled by 20# monofilament.
If you really intend for those fishing supplies to do more than provide entertainment, give it a whirl before it's really needed. I suspect that most 'fishing kits' in bug-out-bags are included due to that being part of the checklist that gets repeated over and over and over again online:
-fixed blade knife
-two miles of paracord
-16" carbine w/24 loaded mags
-one dozen ways to start a fire
-fishing kit