"You bring up a fair point indeed - I hadn't though about it that way - although casting a PoC doesn't mean you have to write about PoC-issues (although on Girls privilege-talk would be inevitable), but I get what you mean. When I write I'm always wary of writing what lies out of reach of my own experience. It happens a lot though, people writing about "sensitive" topics (depression, anorexia, racism, sexuality, body issues, etc.) while not having lived them... What is your opinion on that?"
I think it honestly just depends on how much you’re willing to research different topics, especially for anything that might be considered sensitive. Most people don’t really take into account just how much damage they can do with a poor portrayal of something touchy. I mean, even now, I’m writing a few characters that are bisexual/gay and that I can do easily but I’m also attempting to do lesbian/asexual and one POC so I plan on going out of my way to actually ask people what they think of these characters.