Touch is... one of the most ancient transactions, a defiance of the plasma membrane and the loneliness it brought.
In a sense, evolution adheres to the classic twelve-step program: it takes things one day at a time. It does not strive for perfection; it does not strive at all. There is no progress, no plans, no scala natura, or scale of nature, that ranks organisms from lowly to superior, primitive to advanced.
You have your opinion, I have mine, and it takes all kinds of nuts and dips to make a party, right?
Our minds hurtled outward in all directions. We became absurdly creative, Homo artifactus, intolerant of bare cave walls and naked clay pots.