Girls whose kids love putting hair in their mouths???‍♀️ My always doe…

Girls whose kids love putting hair in their mouths???‍♀️ My always does that. She finds some way to put a hair on the floor and puts it in her mouth and may even swallow it. While I'm busy cleaning or cooking. Several times I found in diapers together with stool she had a hair come out ? In general, what could this be from? I scolded her and explained that it's bad and you can't do it