Being an adult is partly about taking responsibility for one's own life. The man who talks to a woman because his mother told him to do so, might lack qualities of manly social interaction.

Predictions (Because any theory is worthless if it doesn't make them): I predict that conservatives would be much more willing than liberals to support statements like "Parents should make sure their sons grow up with manly skills" and "Parents should intervene when they see their children making bad choices in their romantic lives."

I agree, that's likely true.