I plan on buying most of my baby clothes from a consignment store is that gross?

So obviously I will buy he a couple brand new outfits, but baby clothes are so expensive and they only fit in them a short period of time. We have this really nice children’s consignment store where I live that Has nice clothes and amazing prices. Only thing is everything is second hand which really I don’t mind at all. My mom isn’t a big fan as she thinks it’s kinda gross but the clothes are super cute. Does anyone else think it’s gross to buy your baby second hand clothing? I honestly don’t see an issue with it.