The network effect is real. You can have the best, most awesomely-designed social media platform ever and it will be useless if you are the only person on it.
You can try to convince all your contacts to switch away from whatever app is causing the most evil today, but you also have to convince all of your contacts’ contacts and all of theirs as well.
I live in the states and haven’t seen a smoking section of a restaurant or bar since around the turn of the century. There are ones which have smoking tables outside too close to the door, which sucks.
It’s funny watching old movies like Airplane where he was buying a plane ticket and she asked “smoking or non-smoking” and you remember that people used to smoke while trapped in an airplane.