It depends on the brand, but with most I’ve seen, you can still tap/press an external area of the car to lock it from the exterior, without having to touch the handle to see if it’s locked. You’ll also hear the locks activate.
This is certainly possible, though again, with most vehicles I’ve seen, it actively warns you when the key has left the interior of the vehicle while it’s still running. At least with mine, you’d have to outright ignore the chime and dash alerts (literally telling you the key isn’t in the cabin), to miss it.
I think transitioning from a keyed ignition takes some time, but you adapt and develop habits associated with keyless entry. I think with any new(ish) tech, people tend to try and find holes in functionality, but these have been accepted and are here to stay.
The car usually warns you well in advance. Even then, if the key fob is actually dead as dead can get, holding it up to the start button will typically allow you to start the car. On some vehicles, you can even charge the FOB.
Your car’s actual battery is more likely to die and leave you stranded.
Saves a few seconds, but also adds a good deal of convenience. Similar to my cell phone, it doesn’t take me a long time to key in a code, but scanning my finger saves me a few seconds and adds convenience.
In some cases, I’d agree. However, most cars built in the last decade+ don’t have basic keys, and instead have some type of RFID ignition system or better and/or remote-integrated setups. A few bucks at Home Depot won’t cover that, while anything from yesteryear that’s cheap and easy is also less secure (which you pick a bone with in a later point).
Not in my experiences. They have similar reliability to any other small electronic gizmo I own. I’ve seen as many physical keys bend, than FOBs break, just-because. One requires constant insertion and mechanical handling, while the other pretty much just sleeps in the bottom of my pocket or her purse, where we don’t interact with it much.
You’re leaving out another significant aspect of this, though-- thieves adapt and create a game of leapfrog with any type of security. As mentioned above, nothing is less secure than a cheap turn-key ignition. RFID keys leapfrogged thieves for a while, who then adapted and found ways around the systems, but I’d argue it’s not common enough to fear, or enough that I’d downgrade to an even less secure method.
At the end of the day, you’re best served by layers of security and can only deter a confident thief. If/when your security fails, you have insurance. Between those two points, the experience should be more convenient to the operator, which based on market reception, it is.