No, you should not put shutters on all windows. Shutters are a good way to protect your windows from the sun and weather, but they can also be expensive and time-consuming to install. There are a number of other window treatments that can provide similar levels of protection at a fraction of the cost. For example, window films can be installed quickly and easily and can block out up to 99% of the sun's harmful UV rays. Window shades or blinds can also help keep your home cool in the summer and warm in the winter.

There's no one definitive answer to this question. It depends on a variety of factors, including your climate, the age and style of your home, and your personal preferences. Generally speaking, shutters can be a great way to improve the insulation of your home and help keep it cool in the summer and warm in the winter. They can also help protect your windows from weather damage and add some extra privacy. However, they can be expensive to install, and they may not be right for every style or age of home. So before making a decision, it's important to do your research and consult with a qualified professional to see if shutters are right for you.