Both of my boys are blanket lovers.  We have tons around the house not just one or two each like most kids.  My 3yo likes fuzzy blankets on one side and satin on the other.  My 4yo loves his old crib quilts and then quilts my grandma made me and my brother when we were his age.  My 4yo says he loves them because he can suck on them.  I'm not sure what he is talking about because I only see him sucking his thumb and holding his blanket close to his mouth but hey who am I to question it.

Anyway, it was time to wash my 4yo's most favorite 2 blankets today (1 at a time of course because we can't be without them for that long) so he gave me one and I got it all washed, dryed and returned.  He gave me the other one and said he was glad to have the other one back so he could suck on it.  When I asked "How do you do that?  I thought you sucked your thumb."  He replied "No mom, I suck the blanket...I can do that because I'm a kid!  One day I'll be grown up and then I can't suck my blanket but now it is ok to do that because I'm a kid...OK!"

There you go!! That's why kids suck their blankets...they're kids not grown ups :)