A question about character ages (feedback sought)

I tried messaging the mods but didn’t get a response, and I don’t see a specific rule anywhere, so I thought I’d ask the community. What are the thoughts on character ages? I don’t mean kids or anything like that. For instance, a collaborative writing site I sometimes frequent requires that all characters be over 16, which is the age of consent in most US states.

I’m asking because a story idea I have involves teens in high school, all at or over the age of 16. However, if that’s cutting it too close, I can make some adjustments so they’re all over 18.

I’d appreciate any feedback. Thanks!

Source: reddit.com/r/Erotica/comments/phbphr/a_question_about_character_ages_feedback_sought