Reddit mentions of Not Under My Roof: Parents, Teens, and the Culture of Sex

Academic research would agree with you. A good book called Not Under My Roof is a good study of it.

edit: a word.

If you're still interested, a great comparative study of teen sexuality in the Netherlands and the US was recently published. It's written by a Harvard-trained sociologist, and for me it was certainly very informative; it really focuses on the parent-teenager dynamic, specifically how it's relatively acceptable for Dutch teens to spend a night in the house, and bed, of their boyfriend or girlfriend, while that's almost universally unthinkable in North America. (As a Canadian teenager, I got it for my parents this Christmas, trying to encourage them to take a more... Dutch-influenced approach.) There's also a lengthy section about, historically speaking, why the Netherlands is a lot more forward-thinking about sexuality than the US, while it was much more conservative only 50-60 years ago.

Because of the nature of the subreddit, I feel I have to ask: has it been your experience as a Dutch person that a sleep-over with a romantic partner, even during the teenage years, is relatively acceptable?

If you want to hear more about Dutch vs. US views of sex, check out this book at your local library!