Baby clothes washing

I am struggling with whether or not to wash all the clothes we have received at the baby shower. Most are 0-3 months and 3-6 months. We did get some hand me downs and I washed though just cause they've been stored. But my thinking with the baby shower gifts is they are all brand new and if she doesn't wear them or outgrows them and I've taken tags off to wash then I can't return or resell.