What?
Add some simple starting blueprints (smelting column, red science, balancer) to the player's collection of blueprints to help beginners learn about blueprints.Also incorporate using blueprints into one of the starting campaigns.
What problem does it solve?
Usually new players (me included) don't learn blueprints until they get construction bots. But blueprints are so much more useful than that! In singleplayer they help planning the factory, and in the multiplayer blueprints are the most efficient way of communicating with teammates.Blueprints are hard to grasp and to understand their value people need starting examples because:
a) blueprint are unique to Factorio. A new player has now external reference for them
b) blueprints are camouflaged. First time they are mentioned is in the bots description, and it is a late-game item
c) blueprint UI is controiwtuitive and confusing unless there is a couple of blueprints in the library. New players open the blueprint menu, wonder what the heck it is and close it. Few press the "+" button. That's just human nature
d) blueprints don't provide obvious value without construction bots. When I started Factorio I knew about blueprints but never attempted to use them in the early game. Much later I realized that they solved a ton of my problems by helping planning out the factory