I totally agree. I was so excited to see bay windows only to be so disappointed that I couldn't have my sims sit there (or even simply place items on the bench to make it feel more lived in, a few books or a little clutter). It would be great to see some fun interactions with windows as well, to go along with this idea. "Gaze out of the window" for inspiration or "watch the rain" through the window when feeling sad. I would love to see my sim dramatically lying on a bay window with their face against the glass watching the rain.