One of the major advantages is security. You find that there is an increased number of thieves who are always aiming at taking your valuables and even robbing the property owner. It is beneficial to use these keys since they are only operating with a message sent to the vehicle. This is important as they will just need to use a button to lock and unlock the car door, trunk and even the engine. With messages as a media of communication it will be very hard for thieves to compromise such systems. This is not the case with standard keys as they can be copied or simulated for forced entry. This has made it very hard for thieve to access their vehicles or their properties.
Most of the people also prefer this system because of convenience. You can try and imagine a situation where you are walking from the shop carrying two bags full of items with a car key in your pocket. With standard key and such a load you will have to put the load down to get a room to unlock the trunk which might give a thief opportunity to run with your bags. On the other hand, you will not have to put the luggage down to unlock the trunk as you will just press the button to unlock it.
Also, it is mistake proof. At some point you may find yourself that you forget to lock the car door when you are using standard. With this somebody may interfere with your car, and you will have to go back and lock it even if it is raining cats and dogs. Without getting out in the rain you will lock the car door using keyless entry.
Safety is another benefit of keyless entry system. Besides rain, there are many things that your car can protect you from. One thing for sure is that when someone is following you he may catch up with you when you are still looking for key to unlock your car. But with keyless entry you can unlock the door from a distance before you even reach the car which can make you escape someone who was following you.
Another benefit is that it prevents key damage. You find that standard keys always cause scratches around the lock area. One disadvantage of this is that it will interfere with car paint which will make other parts to look worn out. You can prevent this by installing keyless entry system which is free from such scratches.