I am starting to freak out about getting older. What am I supposed to do now?

I get it, we are getting older and everyone is settling down. What I don't get, is why settling down means no one wants to do anything fun anymore. It's all board games, cooking and pet stuff. My friends group was never the type to go clubbing or anything. That is not what I want to do. We used to just, go over to each others houses and smoke weed, play video games and shoot the shit. I understand my friends with kids. But it's friends without kids too. Everyone has the same excuse. "We are just getting older dude". When I have a gf, it's not like I just stop talking to everyone. I don't even want to be friends with my friends anymore. It's like everyone just accepted none of us are going to grow anymore as people. I am still trying to start my own business and would love to just collab with them. But even getting them to do that is like setting up a work meeting.