It doesn't matter who or why, if you want to say then go for it if your advice is specific to a certain audience or, you want to explain the source for your message, but what do you wish everyone knew, or what statement do you hold dear and find inspiring and/or important, whether it be in life, writing or something else, share it.
Question every opinion and thought you have, and keep your mind and actions in check.
Every antagonist and protagonist, every person in the world does something because they believe it to be right, or have justified their thoughts or actions enough for it to be okay. I know a lot of people who say they are open-minded because they listen, but they keep what they are hearing separate from what they know. Your version, and everybody else's individual version. That's okay, you can question their beliefs, but you should always question your own too. Tim Minchin said you should question your beliefs at least 7 times a day. I don't mean religion, though you could, but your morals. I've believed this for a long time, and because of it I've been known as 'the middle man' in most situations because I may not be wrong, but neither is anybody else fully, but the other day I came out as bi to my Mum. She had recently watched Love, Simon and was quoting it a lot, which was funny and cool, but she did say, "Like in that film, why is straight the normal? There's so many different names and boxes now that aren't needed because we're all the same." And we carried on talking for a bit, but it made me wonder. She mentioned how pansexuality isn't real it's just bi, and when I tried explaining it saying how it refers to when a person is sexually attracted to all genders, she quickly said, "No we're not getting into that, to me there are just four things. Straight, gay, lesbian, bi. That's it." And it didn't make me angry or anything, it's just something that people should look into, and one day she might. She's a great person, but like most people, she doesn't question her beliefs, especially if she doesn't understand something. We are all the same, but we are very different too. Sure, we're all human, but what we have in common helps us to form bonds, and communities, which help us to understand what's going on so that we're happy. Labels and boxes are a source of identity for many people to help them to understand themselves. In honesty, I'm biromantic. Knowing that there's a word for being asexual and bi was mind blowing and so helpful to me, because I had the key word and access to other people like me.
Make sure your mind is healthy, that you are healthy, and not that you are right, but that you are the best you that you can be. Look at yourself and ask, would I have looked up to myself when I was younger? Would this version of me be a role model to him/her? Would I do or say these things if that version of me was watching? No? Yes? Why?