I'm mostly looking for behavioral changes both sudden and over time, but also worldview and opinions /values. Mostly behavior though

The reason is because I feel like my friends, after having lost their virginity, come off more relaxed, like things don't bother them as much. Basically this idgaf vibe. Just wanna know if that's a guaranteed side effect, what is it a side effect of, and if it's different from person to person.