First of all, never take advice from strangers on the internet, especially with a decision that should be personal...
Second, piercing a child's ears when they are young is a VERY common practice all over the world. There is no harm in it, assuming you care for your child properly to begin with since you'll also be caring for her ears afterwards until they heal... Don't listen to all these people telling you to ignore your husband's wishes to keep his family tradition alive. I'm not saying you have to do it, or even that you should, but that's a decision the two of you should make together, not a decision you and half the world on the internet should make together.
Third, to kind of show you the other side of this argument, just imagine this: you know good and well if you had told the internet that YOU wanted to get your daughter's ears pierced at a young age because it's your family tradition, and that your husband was the one who didn't want to have it done, everyone here would be telling you to screw his feelings and who cares what he thinks and do what you want... Which makes my first two points all the more important: don't take advice from strangers on the internet and make this decision privately between the two of you.