Quite true. I'm opposed to ageism as a whole. There are some
  forms of age discrimination which are appropriate, imo, but most
  of it is crap.

  You can unleash yourself from the weight of time. It takes some
  brain-retraining but it's possible. Let me find a study I did a
  few months back, it's related to this issue, the "acting your
  age" thing.

  Also, yeah, the moment you look back with nostalgia, you're
  already behind the times. You could be 10 and remember how much
  better Pokemon XY was than ORAS... and you've just become an old
  fart at 10. [I know because my nephew is doing that a bit and
  he's 10 tongue emoticon ]

  as far as "the norm", consider this: Most people follow life
  scripts. They get the life scripts from the same places their
  parents got: Movies, TV Shows - the days of religious influence
  upon life scripts is nearly past because its been replaced since
  at least Victorian times (the novels outlining lives nobody
  really has) and continuing through the advent of movies and then
  TV, etc.