That's interesting to hear. It's cool to have a player with actual latrine digging experience!
I do understand what you're saying on this, however this is definitely one area where making a game vs making a realistic simulation may rub up against each other.
In real-life a single water well can support over 1000 people. The same for a hospital, chapel, etc. If we were chasing realism, you'd build 1 of everything and switch the game off, job done.
Atomic Society doesn't bill itself as being a realistic simulation of life anywhere. It' s a game, and the gritty, post-apocalyptic appearance is just a setting. Consider us aiming to be about as realistic as the board game Carcassonne is to medieval warfare or Cluedo to real-life detective work.
However, I'm happy to try and include as much realism when it makes sense. At the moment you need 12 latrines to have max protection. We could at some point redo the art on the latrines so they look like single-seater cubicles and not blocks. This would maintain the need to build several vs realism a bit more.
And perhaps later, when we have smaller problems to fix, we can also add something like the player needing multiple wells because they dry up or become contaminated (or something along those lines) so you need backups. We do have a few more food/drink buildings coming that will affect the whole water/food balance side of the game so don't worry if the balance is a little off for now. It will get tuned before the end.