I answered "yes?" (Though I am not sure why I am answering with a question.)
I remember when my uncle died, my dad got a whole bunch of "new" jeans and casual shirts. I was seven at the time and it was not until a few years later that I realized they use to belong to my uncle.
When my wife's grandma died, we did not keep any of her clothes, but we did live in her house for a year and kept a lot of her furniture (we have moved a couple times since then and I think we still have some of the furniture in storage). The only piece of furniture that had to go was the bed she died in.
Under normal circumstances, I would wear the clothes of someone who died, though I probably would pass on the clothes they actually died in. However, if it was an emergency or life and death situation (freezing to death, etc.) I would not hesitate for a second to wear the clothes.
MotionMan