Well for ladies who carries handbag, keyless entry is a no brainer. Never again do they need to fumble in that bottomless pit they call a bag to look for keys.
For me, its a convenience factor. And I'm all about efficiency. Say it takes you 3 seconds to dig for a key, another 2 to press unlock and reach for the handles after, and then another 3 seconds to insert the key and start the car. Do that twice a day, that's 16 seconds a day. Factor that by 365 days, we're looking at 97 minutes of our life every year, to do what? I don't "enjoy" the key experience at all. I just want to get in and drive as fast/efficiently as I can.
Hell I'm changing the locks in my house to fingerprint ones.
The thing is, you have been living without the modern high tech stuff. Go to a caveman and tell him you can press a few screens on your smartphone and food gets delivered to your door. And he can tell you he don't need that shit because that's no place to charge the phone in his cave, he just goes out and collects fruits from trees. He's not wrong, but he's just a caveman.
As for horror stories about tech failing, it happens. But that's the trend these days, cars are becoming a consumable. Modern hacks, I guess that's where insurance with agreed value comes in.