I am not young, and I do better with asynchronous communication. I don't mind chatting on the phone when it makes sense to, but I generally prefer email; it gives me time to think through what I want to say and make sure it's communicated correctly. On the phone, I wind up going silent for a minute to think things through, and other people get uncomfortable because of the silence.

Worth noting, it's not about social skills. It's about having the time to fully think through a complex issue and the information related to it. That just isn't possible during a synchronous conversation. You wind up having meetings where the things that get decided aren't the right things because people didn't have time to actually think through all the factors involved.