...if the window is big enough then maybe people could see pointing, arriving, leaving, hitting, whispering...
And what about the door? Is big enough?
The main reason for people asking for windows is the visibility issue, isn't it?
We don't need windows for that, we have open doors.
Anyways...
I will make windows with bars (just iron or bronze) and wood or reed (or something similar) for an inner shutter (the closing option).
Only crowbar can break it, and it should require more time to accomplish it.
But if we are going to use wood for a shutter... shouldn't doord require wood also?
Maybe the doors in the stone buildings are made of stone...
And glass is fragile. Let it be fragile. If you are afraid of someone breaking your expensive glass window... don't make it.
Glass only breakable by sledgehammers would be another unnecessary WEIRD characteristic of Cantr making trouble for the learning curve.