Before smart phones I carried a book everywhere I went and would pull it out at any point I'd generally reach for my phone now. I also got lost driving a lot.
I've got a big ol atlas because I read somewhere that over-relying on google maps messes up your ability to function without it.
I think there's no way that's actually true. Google maps helps me arrive somewhere for the first time, but after a small number of times I can drive most places without looking at it. I'll still use it, because "go another route because there is a huge traffic jam following an unannounced pothole filling or car accident" isn't a possible skill to learn. Also Google maps is fucking glitchy, you still need to read signs and know where you are anyways, otherwise you're missing turns 25% of the time.
I would have a CD player, book, and GBA/DS on me at all times in high school. Never had an issue with boredom until I got a smartphone. Now it's constantly fighting for my attention and preventing me from do things I want to do