Fear of change. The future is always (uncertain) therefore a known past is more easy to deal with than an unknown future.
For some people these are bad times. Ironically whatever period one is in the children of that period will consider it to be "the good ole days". Worrying about things we can't control causes stress.
Believe it or not some child or teenager today will be wishing they could go back to 2015 when they see 2035. It's always been that way! Maybe there's truth to the old adage of:
"Ignorance is bliss".
Long before we had 24 hour cable news shows, the Internet, and social media connecting us to the world around the clock we mostly focused on events taking place in our hometown or a nearby city. Life was simpler. People (automatically trusted) their government.
Most children and teens don't spend a lot of time following news and politics. Clearly it's a case of the less you know the better you feel.
You went to work, came home, had dinner, watched TV sitcoms or one's favorite drama, went to bed and repeated it the next day. On weekends you went shopping, did yard work, spent time outdoors doing various activities, and on Sunday you went to church and got prepared for the next week.
Human beings are creatures of habit. Changes make them uncomfortable. The future is all about change and evolving ideas.