When to do daycare?

Im at SAH mom but I feel like our 6 month old will benefit from an hour or so a week at daycare. I feel like seeing the other kids, adults, things they'll do with her that I might not have thought to do is good for her development. My husband doesn't agree he thinks it's unnecessary that we have a couple years until we need daycare and that it's too early. I need some advice because all of my friends' kids are already older and in school or preschool. Advice? Opinions?