I have the iPhone 6+ in a ram mount just in front of the instrument cluster so I could attempt to read it if the screen would consistently respond to my gloved finger.
My phone is typically either in the dedicated compartment in the "Infotainment Center" or in the saddlebags. I almost always have my music playing (via Bluetooth) but I can control that (skip songs, adjust volume, etc., via controls on my hand grips). Because my phone is always paired via Bluetooth, I do get the audible alert played through the stereo system when I receive an SMS message -- and the ringtone and notification on my display when I receive a phone call -- but I can't hear or read my messages through it.
After thinking about it for a moment, I don't think Siri would be able to "hear" me, though, regardless of where my phone was (I don't have a Bluetooth earpiece or anything like that and I don't wear a helmet). I'm gonna look into it, though.
Why, i'm not sure, but it's infuriating whenever i get in my Mazda that voice recognition won't work any more (the phone ignores it's mic because it's connected to bluetooth that identifies as being able to handle that, and the car won't send that info back to the phone).
The number of people in the car (i.e. whether another passenger could have been using the phone) shouldn't affect whether you have the right to the privacy of your communications and personal data on your phone.
If I want to go east, I have to take the highway. There are no other roads through the mountains for a good 50 miles north of my current location.
There's even an effort to sign post a national route system:
https://en.wikipedia.org/wiki/United_States_Bicycle_Route_Sy...
To me the bigger issue is that biking or walking along a busy road is unpleasant.
To say the problem varies a lot geographically is an understatement.
This is a corruption of terminology. "Driving" in these discussions means traveling via the public road, which you do have a right to do. Using the public roads for private commerce (the original definition to "driving") is different, but nobody here is talking about that.