We're not that different from back in the days

I have been thinking about the whole plot of the women in the show know nothing about sex and how the writers of the show get criticism for making the naivety of the women unrealistic. I want to say even in today's time it's not unrealistic. I came across a cousin of mine, she did not take biology in high school, and most of the things I thought were general knowledge were actually new to her.

The things we know for most us, we have not learned from our parents, but from reading books, the internet and from our friends. I was one of the lucky ones as my mom is a biology teacher, but often when I am having a chat with friends, I realize that we still have a long way to go in terms of sex education because we're not really that much different from the regency era.

Edit

Adding more to be clearer: Maybe I didn't articulate it properly, but what I meant is that, there is still al ot that needs to be done when it comes to sex education and we are not really that far ahead. I did not point out that the women back then fully depended on their moms for information, and they were sent out into to the world not knowing anything. Were it not for school, internet and books, even more women would be in the same position as the young ladies of the ton because our mothers are not that different.

Edit: grammar and spelling