Am I being too strict
I am a DM starting up a new campaign. Currently then players are figuring out characters. Our youngest player is 21, our oldest players are 30. I have one player who wants his character to be 15 years old. I personally don’t feel comfortable having a minor character, as I cover very adult themes in my campaign (drugs, vampiric seduction, brothels, and the like). This player is saying he’s okay with changing it to 18 but he’s being kind of passive aggressive, arguing age 15 “makes more sense for his character”. Another player is saying that I’m being too strict. I will note that a few other players have expressed concern, comments like “uhhh what the ****?” Or “that’s a little weird.”
What’s the verdict? Am I being too strict, or is this a fair rule to have in place?