This idea is awesome because of the responsability you hand to the mind to keep the sleeves up, but where I live (Puerto Rico) even for a person like me who is "used" to the weather its impossible to wear a hoodie, even at night(A.C. is an exception) only way to wear a hoodie here is to go out at night.

I will be moving to indiana in a week or two and if I remember it I will try it as I will have to wear protection untill I get used to the cold.