I'm over 50 and regularly deal with Millennials and other 'younger' folks on a professional basis and they fall into 2 distinct camps:
1) Reasonable and interested in the wider world around them and where they fit into it. Well informed and knowledgeable.
2) Glued to FB/Twitter/texting to such an extent that it has become their *only* source of information. These folks regularly fall into holes (figurative and literal), walk into utility poles and kill others while driving. These are some of the most shallow and self-absorbed beings I've ever encountered. They make me concerned for our species.
Yes, I know this isn't limited to those on the younger end of life, but its effects seem most profound there.