I don't mean the issues part, but the "if you have drive and information you can fix social skills". If only it was that easy. Specifically, isolation and lack of motivation are also caused by depression. You're basically recommending "not having depression would really help for your depression".
I tried to avoid clinical depression... If we're talking clinical depression I want to exclude myself from this conversation because I'm not an expert.
I'm talking about social laziness. Few people have the guts to go introduce themselves to a stranger (in an appropriate context of course) and strike a conversation and try to make a friend. At the office this is "built in" and you get a level of socialization for free. So many people rely on these perks and leave it at that. Tons of firsthand observation here.