Daughter-in-law rejected secondhand baby clothes I gave her. I'm so hurt!?

This past weekend, I did some shopping at my church bazaar. I picked up some very cute, secondhand baby clothes for my granddaughter. I gave them to my daughter-in-law, who rejected them. She told me that she did not grow up wearing hand me downs (she comes from a well off family) and that you couldn't be sure who wore the clothes or that they were fully clean. I told her they belonged to church members and that the clothes were clean. DIL said no, there was no way her child would wear hand offs and that she and my son were doing well. I was very hurt by this. I often put my son in hand me down clothes and he turned out fine. I am so hurt and confused! Should I tell my son about this?