Am I in the wrong?

My husband was taking my daughter a bath and l had just gotten on her because she didn’t tell us she had poop in her pull up (she’s mostly potty trained) but then I told her it’s not good to not tell us because she can get a butt rash or poop in her vagina and it’ll hurt her. And when my husband heard me tell her that he flipped out. He told me not to teach her that because it’s “inappropriate” for her to say that word. I told him please I hope you’re joking. He got so triggered and said he’s not okay with it so I need to not teach her that word. That when she’s older she can learn it. He said she can say “private part” Wtf? She’s 3 years old. She’s super mature for her age as well. I’ve only said it to her a couple of times but regardless I don’t think it’s an issue. I think it’s important for her to know. She’s a girl. She’ll be a young woman one day and you never know what can happen. And he stormed off and left me with her in the bathroom. I feel guilty but I know I’m doing the right thing. What are your thoughts?