4 ms·15 years ago was 2006. Almost every adult carried a cellphone everywhere back then.by mFixman 6y ago15 years ago was 2006. Almost every adult carried a cellphone everywhere back then.maerF0x0 6y agoI certainly didn't. But will concede I was definitely a late adopter.DerekL 6y agoIt was 66%. Most adults, but less than “almost every”. https://www.pewresearch.org/internet/fact-sheet/mobile/ https://www.pewresearch.org/internet/fact-sheet/mobile/