Smartphone and social media addiction is a real plague affecting younger generations. To deny this in any way is to be woefully and intentionally ignorant of reality.
At the same time, part of the reason this is a problem in the first place is that the exact same is true of older generations. See Sherry Turkle’s excellent book Reclaiming Conversation for hard data on this front.
An illustration from my commute this morning: traffic was held up at a left-turn light because the lady in front of me put on her readers to check her phone.