Kbinners of Kbin, How many of you don't use a smartphone and why?

So far I've avoided getting a smartphone. I guess the main reasons are:

1. cost (my dumbphone was relatively cheap and costs me $9/mo for unlimited calls and texts, no data)
2. not wanting to walk around like a zombie staring at a phone like most people
3. not wanting a bunch of privacy-invading apps sending notifications at me tracking me
   and a few other minor reasons. Eventually I'm sure I'll have to get one, since more and more daily activities practically require you to have one.

And you? Do you use one?