I assume it’s because it’s cheap infrastructure.

Of course not, can’t let the consumers keep an easy paper trail of their bills. That would mean we would be caught on mischarges!

Civ 3 was my first civ. I loved putting like a 100 units on the same tile.

I was thinking of civ 6 specifically though.

Damn I love building railway systems in civ for my army. Something so satisfying about it.