My daughters 6 and still has her blankie (acrylic cellular blanket) infact she has 2. One at home and one at my mums for weekends (I have a dog and cat and my mums allergic).
She'll have it for as long as she wants it though i was looking for a new one recently as it's seen better days but they don't do them in mothercare anymore which is where hers came from. She only has it for bedtime or when we're on the sofa watching films though
My girl was pretty much glued to hers but at around 3-3.5 yr old I put a ban on it leaving the house. Then extended that to it staying in her room unless she was ill. She is now 8 and still sleeps with it over her pillow at night but thats the only time she has it.
I had a 'stripey blankie' which was a bed sheet I became attached to until it literally wore so thin it ripped to shreds lol. I still remember being upset that mum got rid of it even with all the rips.
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