There are many use cases for these technologies that are difficult or impossible to achieve with a traditional key lock. For example, you can remotely grant 2

There are many use cases for these technologies that are difficult or impossible to achieve with a traditional key lock. For example, you can remotely grant 2 hours of access to a tradesman to enter your property and fix something. You can grant access to realtors to enter your property that is for sale, and you can track how many times they were there and how much time they spent on each visit. You can grant the cleaning person access between 9am and 1pm on Wednesdays. You can get into your house with any BLE-enabled device. Even if you lose your phone, you could borrow the neighbor's phone, run the appropriate app, enter the correct PIN, and gain entry. Then give them back their phone and they have no more access to your home than they did before you used it. Of course, you can argue - a physical key or a keycard doesn't require batteries. But, a keycard can be erased or scrambled or lost. Then you need to quickly reprogram the lock so whoever finds it can't use it. Impossible with a traditional lock, and varying degrees of difficulty with a keycard system.