Growing up, I was always told that boys could come over if I leave the bedroom door open, and I see a lot with my friends that the girls would not be allowed to have boys over/in the bedroom/have the bedroom door closed or viceversa (boys with girls).
When I realized I may be gay and trans (masc), my parents were accepting and allowed me to have the door closed with girls because I was gay and still not with boys.
Then, I had a boyfriend and they said I could keep the door closed with anyone except my boyfriend.
Now, I’m nonbinary and bisexual. Would you allow your kids to close the door?
Ah yes, an open door, the ultimate and unbreakable curse that forbids a teenager for having sex no matter what.
The best thing a parent can do when their kids become sexually active is to buy them condoms. Many unsecure sex at that age is done out of pure embarrassment over going to a place to buy them or having their parents know what they are doing. They are going to have sex regardless, at least do your best so it is safe sex.