I won't guess at the age of the author, but this feeling seems to creep over people as they age, and always has. Today's complexity seems simple for fresh minds that have grown up alongside it. Meanwhile the simplicity that tired, bewildered older minds hark back to as a golden norm appalled the older minds at the time.

Almost universally, the response in older generations seems to be to look for simple solutions and explanations. They're almost a comfort for them - as if the world has gone wrong in some way but a real fix is possible in what they remember from the past. It's our tragedy - the world moves on from us, even in our lifetimes.

Could this be because older people have more memories of when certain things were better than they are now?

Without saying too much, I think this is more common in young people than you may think.

Your comment lays bare the problem with Gerontocracy