Blinds are indeed designed for fixed glass windows, while curtains are a better fit for openable windows. This is because blinds are typically attached to the window frame and aren't designed to move with the window when it's opened or closed.
For fixed glass windows, blinds offer a range of benefits, including:
Light Control Blinds can be adjusted to control the amount of light entering the room.
Privacy.
Blinds provide privacy by blocking the view from outside.
Energy Efficiency Some blinds, like insulated glass blinds, can help reduce heat gain in the summer and heat loss in the winter.
On the other hand, curtains are a better choice for openable windows because they can be easily moved out of the way when the window is opened. Curtains also offer a range of benefits, including:
Flexibility Curtains can be easily opened or closed to control the amount of light entering the room.
Style Curtains come in a wide range of styles, materials, and patterns, making them a great way to add some personality to a room.
Functionality. Curtains can help block out light, reduce noise, and even provide some insulation.
Ultimately, the choice between blinds and curtains depends on the specific needs and preferences of the room.