Biologically speaking, yes procreation might be our reason to exist but human behaviour is far more complex than what biology says. creating something is the only way we can ever achieve happiness.
Every single one of us is an artist and we are all creatives. Create shit. Create weird shit. Create it for yourself. It doesn't matter if it's a shitty drawing, or a shitty little poem, or a shitty photograph... Just do it. The current technology has given us the means of doing whatever that fuck we want to do.
There are people doing absolutely crazy shit out there and nothing says we can't do it. Don't let some random person tell you what you can and cannot do (unless it's something terrible). Don't be afraid to be brash with your words. Don't always try to be marketable. The internet often censors the narratives it doesn't agree with but your art doesn't have to be on the internet. It's still valid if it's in your notebook or your hard drive.
Just fucking do it.
~ megh