So if you leave your keys in a bowl by the door, they can just extend the range of the key with a relay/booster.
The car will only stop when you turn it off.
Still a button less key .. with a distance based protocol .. I'm no expert but it sounds so naive.
Things like this save an infinitesimal amount of time (or sometimes even make actual usage more difficult), and introduce orders of magnitude more complexity ripe for exploitation. All so people can feel like they're magical.
I believe society still have a lot of inertia toward this. I also think video games tapped into this brain subsystem, that IMO was designed as a desire to learn how to master the real world, except now technology can bridge the fantasy
Sure, I would still cope with conventional keys; I wont deny that. Just as my mum coped raising me when she didn't even have a car. But I'm just making the point that this feature isn't just some "juvenile power fantasy" and actually does help make like a little bit easier.
Though frankly, even if it was just a vanity feature then I still wouldn't begrudge anyone wanting it. Isn't that the half the reason people buy nice cars in the first place?
For what it's worth, if this is a feature you have but don't like, then some cars (mine included) do allow you to disable that feature. So it might be worth consoling your manual / checking the in car settings menu.
There is a very slim key that is included in all the key fobs that I've seen.
I have car insurance and zero worries about theft.