I don't think many people realize how much they've been turned into a bunch of casually cynical jerks.
Someone may come to their parents and say "I want to write a book" and their parents will say "it's really hard to get published".
Someone might confide in their sibling and say "I want to sell my art on "x" platform" and that sibling will say "do you know how many people you'd be competing with? Do you know how many shops are even on that platform?"
I know a kid who once told his best friend "I think I wanna start a dnd podcast" and the friend was like "do you know what the word "oversaturation" means?"
Personally, I don't know why any of that matters? And even if it did, perhaps your response should be "Do it! Do it and see where it goes!"