I had for a long time keep a few hundred at home, probably should again. Just sort of got out of the habit. After huricanes power can be down for days, while I have ermgancy supplies, specially printed green slips of paper could get me other needed items.
I also always get a few hundred in local currencty when traveling, dont like landing somewhere without it. Never know what might happen and cash will get me a cab to my hotel and dinner in most any case.
I also keep 100$ in my car, the original bills eventally faded and I had to rotate them out.