I have had some favorite blankets that I call blankies for a long time. It started with a grey one that a stranger at a bus stop gave me because my coats were boxed in my under the bus cargo. Then my mother in law got me the dove fabric softener blanket. My school sent me a school blanket. Now my favorite one is a leopard print half throw. I bought it from Walmart for sewing infinity scarves for my daughters and only ended up using half of it so the other half ended up in my bed.
I do not think I had a favorite blanket as a baby, but when my daughter was 18 months old we found she needed one when we let her spend the night at grandma's and did not think to send it. That was a midnight trip to grandma's to give it to her.
So I have been sleeping with one for 13-14 years and never cared who knew. I am a small lady, so need all the extra warmth I can get.