Epiphany in Trader Joe's

I'm desperately trying to comprehend why it is that I don't understand how this is still happening and I continue to fret about it while standing in line at Trader Joe's with a millennial bumping me from behind with her cart and talking on her cell to what must be a very bored person about her "utterly and completely terrible" Tinder experience last night... Oh, wait, that's how this happened.