How to deal with people's Gender comments?

Heather • Mommy of 💙💓💓💓💓👼👼

So I have one son my oldest at 14 and three girls 6,2, and 1. All I hear is Your son needs a brother.. How is your Husband handling all those girls?? Or OMG what if this is ANOTHER GIRL?? I try to tell them I really don't care what Gender my kids are. They could all be girls, boys, or any mix of gender and I would still be their mom and love them the same... Some how they can't accept that... Why? Do people really care this much about their kids Gender? I just want my kids to be healthy, happy, and productive..