Security doors are a great way to add security to your home, without having to deal with a complicated alarm system, or with motion detectors that trigger outdoor floodlights every time a squirrel runs across your lawn. Some homeowners avoid security doors, however, simply because they have some misunderstandings about those doors themselves. Note a few of those here so you can ensure you're doing everything you can to make your home safe and secure from potential intruders.
Some security doors can be very thick and heavy, but not all. This is because the weight of a door itself is not necessarily what makes it secure; the density of the material and the doorframe is what makes a security door strong. A security door can be made of a lightweight but very tough PVC, vinyl, or other such material.
A high-quality security door might also have a steel skin that is added over a layer of lightweight foam; the steel layer then provides security without making the door very heavy. If you're worried about someone in the home being able to manage a heavy security door, you only need to shop around for something that is lighter but still tough and strong.
They actually make a home more of a target
Some people assume that a potential thief will target homes with more security features, reasoning that the homeowner is trying to protect lots of valuable things behind all that security. This might be true for some thieves, but note that a security door can be very unobtrusive. Many such doors will have very attractive scrollwork across the front, or they may look just like a standard aluminium door, but be made of a thicker, stronger steel or dense vinyl. This offers your home the security you need without making it obvious that you've added this extra security measure.
They make the home feel closed-in
If you enjoy keeping the inside storm door open so that your home gets more light and air circulation, you don't need to think that a security screen door will somehow detract; these doors can be made with a full mesh front, for lots of sunlight and air. These doors can also be made with solid bottom panels and then mesh along the top, just like a standard screen door. You can choose whatever size mesh would offer you the security you want while still letting in your desired amount of sunlight and fresh air, and without making your home seem closed-in or dark and dreary.