I don’t think it is about flipping a coin between open-minded and close-minded but about radicalization. While it is harder to see with QAnon, radicalization be it right, left (although you have to go really far on the horseshoe), or religious is staunchly anti-intellectualistic. Once you believe in ideas or at least do not see them as really distasteful, it gets easier to go towards more and more batshit insane ideas.

While I am not sure if there is actual research on how age affects radicalization, research on radicalization has identified certain things that make it likelier for a person to be radicalized. Vulnerability, marginalization, and othering are all pretty common. To extend it there might be an age group vulnerability of 45 and up age group because of either being empty nesters or kids at least starting to be a lot more independent.

There is also somewhat of a domino effect. People like to be part of a group. If people don’t give any legitimacy to radicalized viewpoints, it makes it harder to be radicalized. The problem with this is also how hidden ideas can become mainstream as has at least in Western countries happened with the alt-right, they can reach a scary critical mass. Once you have been tempered with completely crazy viewpoints at one point thinking JFK Jr will be resurrected is not that weird anymore.

Over a decade ago when I started to get really worried about the rise of fascism in the West, my mom thought I was insane. Now we have had (not American) actual neo-Nazi as minister and no one of the ministerial parties thought it was a huge enough deal to actually not do it. In my books that means they all are neo-Nazies. My mom also doesn’t think I am insane anymore. The tools they used to gain power are not new. We are just not taught to identify them. I was because it would be a pretty bad idea to have someone in my profession if not aware of signs of radicalization.