Correct me if I m wrong .. but if no scout Ancienter era = dark age on Classical era. Under the circumstances of the pic in my first post; how could I make new cities with 2 AI's so close to me??... even if I had succeed to defend my capital.
No one is saying never train a scout in the ancient era - the point is that on deity training another military unit first is usually a good idea, and in cases like this where you will find out you have a very close neighbor, you may want to just continue churning out military units. Goody huts are subject to RNG, so even with a scout you’re not guaranteed a lot of era score from that avenue. And meeting city states early is great, but doesn’t impact your era score.