I am a younger millenial and didnt have a cell phone until they got smart but most of the people I knew in highschool had blackberries or their knockoffs which had full keyboards. I still passed the capatcha though.

Briefly: I didn't.

More substantively: I never owned a cell phone growing up, even though I was at the right age when they became a common thing for teenagers to have. It wasn't a money thing, nor household rule, as my sisters got phones when they were in high school. The biggest reason was probably just how I communicate. I wasn't big into IM services either, and I preferred email or face-to-face, or a (landline) phone call if it was an urgent matter.

Then there was also my adolescent brain thinking I was making a bold counter-culture statement by steadfastly resisting the march of technology. In reality, I was probably just being a pain in the neck for my friends and family, and I probably unnecessarily endangered myself at least once.

I did finally, begrudgingly, get an old hand-me-down flip-phone in my final year of university, but that was out of necessity, and I used it to make maybe only a dozen calls the 2.5 years I had it before getting a smart device.

To bring it full circle: I did try sending a text message with that flip-phone exactly once, at the insistence of my family. That message was predictably a garbled mess, and to this day my sisters still wonder how I managed to get a number to appear in the middle of the "word".

I have a number of other somewhat amusing stories about people's reactions to my lack of a cellphone, but this post is long enough already.