Security blanket/lovey - weaning? Breaking the habit?

Tiffany • Wife 💍 Girl mom 💖 Boy mom 💙 Best of both worlds💕

My daughter just turned 4 in May. She stopped using a pacifier at 4months old. She always preferred to have her fingers in her mouth. She uses either a burp cloth or a baby facecloth as her lovey she doesn’t like the blanket lovey’s bc she doesn’t like the silk trimming.

Anyway ... my sister thinks that since she’s (possibly) starting Pre-K in the fall that I should break her of using one. She uses it during a car ride and at bed time. She uses when she’s feeling anxious. It’s what helps calm her. Do you think 4 is too old for her to still be using it?

This is the current one she been liking. It’s a unicorn facecloth from Target’s baby section.

And this is typically how she use it. Fingers in her mouth and lovey to her nose. (She says she’s smelling it).

Thank you everyone ... she doesn’t take it into stores (even pre-Covid).

Should I send if during nap time at preschool or is that not allowed?