I remember when I had dialup, I couldn't see the big deal about broadband internet. After all, I was primarily downloading text and I could get online in less than 30 seconds.
It wasn't until I went to college and had a persistent pipe that I finally got how different always-on internet was compared to internet you had to bring up.
I suspect at least some of your lack of use for a smartphone is precisely because you don't have a data plan.