I don't go to meetings - I just passed three years sober.
I was previously sober almost two decades and never went to a meeting. Some would argue that, "Yeah, but you drank again." So do many who are in the rooms, so that's not a guarantee.
It's an inside job for me. Some people need or want that group dynamic or that particular model of sobriety. It's a choice.
There are many ways to be sober. People have been quitting drinking since way before 1940 when AA came into existence, so there's that. Before the internet, too.
It's an inside job.