3 ms·Does your old mom use RCS in large group chats?by harkinian 3y agoDoes your old mom use RCS in large group chats?Dah00n 3y agoSize isn't the issue, but she does use it yes. With friends scattered throughout Europe.harkinian 3y agoSize is an issue, because with more people in a chat, there's an exponentially higher chance that someone doesn't have RCS or has some issue with it.