[SophosQ]

Albeit I can't disagree with your point. There seems to be significant evidence to support the hypothesis that a minimal degree of socialising helps prevent mental decline.

For instance consider the different things you need to consider whilst holding a simple conversation. It's not the same as talking to a wall. It's a game with constraints and a game that our DNA would rather have us do in order to better our chances of survival through cooperation with other members.