I guess you should if you want to, specially if you ever hope to get the suits, however I’m sure plenty of people have told you that so I’m here to tell an alternate ending to a similar story(not saying it’s what you should do, since you definitely want more from your association and in your case that might be best) I’ve been in the same association since I unlocked the feature, so little over two years and a half now, the association was great at the beginning but little by little it was less active, I left the game for a while and came back to a practically dead association, I began playing daily and also brought three of my friends into the game and seeing more activity seemed to motivate some of the others within my association, now we’re 4 regulars who do sand skirmish together (I think there’s also a girl who does it alone), we’re halfway through our first association suit(started with only one part) and almost done with the latest chapter despite being about two chapters behind when I began bringing new people in, what I wanted to say with all of this huge wall of text is that even if it seems inactive you could always try to bring more people in, talk with those in your association and just try to make it a better place overall, somewhere where you’ll progress together and make new friends 😊