When it becomes more of an addiction.
I was first exposed to napkin folding by GentleWhispering. (Yes, I experience ASMR. I have all my life, as far back as I remember, and I honestly thought everyone else did, too, until not long ago.) I became a little obsessed with remembering all the different folds she showed, then branched out to Luigi and others. From there it was just a short hop to origami. (Gentle Whispering didn’t help.)
I actually enjoy napkins more, but paper will do.
I’ve made a bunch of gift boxes, and went and bought a big “mega pack” of origami paper this afternoon. (400+ sheets for $3.86. Don’t you judge me!) I’ve been folding bows and flowers and stuff since I got home.

Boxes 2 and 3, I think. 4 and 5 went to San Antonio to hold Christmas gifts.

Fourth try. This is actually tiny, like about 1-1/2″ across. Those were little bitty strips.

Second try. This is pretty fun.
I think I have a problem.