I think part of the reason the scrubs were so soft can possibly be a part of how many times they were washed. Im sure you washed your scrubs, but compared to the number of times theyre washed in the highpowered washers at a hospitals laundry facility, its nothing. I wear scrubs everyday, and have encountered the harder scrubs, theyre obviously very new. It may have to also do with the fabric. I have some Dickies Brand scrubs that started out already soft and have remained that way.
BTW, my hospital scrubs are 50% polyester and 50% cotton