And the way of thinking isn't constant. It changes over time. A 15 year old you, a 25 year old you and a 50 year old you are all different people. A 500 year old you will most probably be a different person.
There are people who resist change and disapprove of all viewpoints other their own, but I doubt it's an age thing. I see a lot of young people opposing gay marriages for instance.
We think differently as we age. Have you spent any amount of time arguing with old people? You can't teach an old dog new tricks, etc.
Ideas tend to propagate in generations - it's often necessary for the old guard to die off before a new idea will be accepted, whether this is in art, or science, or politics or whatever.
As new people crop up that aren't reputationally invested in a certain idea it allows more ideas to be considered seriously, etc.
I know a guy who did a bunch of market research for a senior care product. They found technology use, on average, dips in the 60s and then starts increasing again in the seventies.
