Why Aren't Airplane Rows Aligned with Windows?

Question

Pourquoi les rangs des sièges d’avion ne sont-ils pas tous alignés avec les fenêtres?

Answer 1

In the beginning, planes were intended to have perfectly aligned seats in rows with windows, but airlines decided to add extra seats to earn more tickets which can misalign the seating and cause less leg space or the window view to be obstructed.