It can be damaging to talk about what any one group is better or worse at, statistically, because it leads some people to stereotype all members of that group. And I believe that most people that talk about things like this don't actually have statistic to back them up. For example, it's a pretty common to joke about "women drivers" and yet insurance companies, the folks with the most information, tend to charge women less because they're less likely to be in accidents, get speeding tickets, or DUIs.
Bone-headed people say bone-headed things and try to back them up with "common knowledge" that's just misinformation rooted in traditional views.
In regards to your wife, that can be different. I assume you're aren't saying things like "she's good at juggling because she's a woman" and instead just "she's good at juggling because she, as one individual, is good at juggling." My wife is amazing at art. It's not because she's a woman but because she's spent time practicing.
Bone-headed people say bone-headed things and try to back them up with "common knowledge" that's just misinformation rooted in traditional views.
In regards to your wife, that can be different. I assume you're aren't saying things like "she's good at juggling because she's a woman" and instead just "she's good at juggling because she, as one individual, is good at juggling." My wife is amazing at art. It's not because she's a woman but because she's spent time practicing.