If only because the same companies are training users to require all these extras, by effectively (and mostly inadvertently) erasing past knowledge. I'm sure Google would love it if their engineers could remove dialing entirely, what number could you possibly want to call that's not listed in Google somewhere?
A lot of those same muggles were/are fine before these services came along and many likely want it to stay the same.
> They want something that works, which is what modern smartphones do.
Ha! You're funny.
Look at one process I'm sure most of us are familiar with: getting a cute girl's (or guy's) phone number. With flip phones this was simple- pull up the dialer, punch in the number, hit save instead of dial, done (or just dial and save later). No waiting, no fuss. Now with my smartphone that same process is:
* key in my passcode / fingerprint / whatever
* wait for UI to animate, notifications to process, and for the OS to catch up (cause powersave is now off). 3-10 seconds on average of awkwardly staring at the screen and apologizing for the phone's slowness
* hit phone icon, wait another second for my touch to register than another 5-20 seconds for phone app to start
* enter number, hit Add To Contacts, meanwhile all inputs are lagging about a half second behind my actions. Wait for contact screen to appear (another 3-10 seconds)
* enter her name, maybe snap a photo (about the only real value-add in this process), hit Save, again waiting half a second or so for UI lag after each touch
If going out with a flip phone didn't make one such a large target socially you can be sure more would be rockin' it.