Inherent factors could explain different ratios of conservativ vs liberal views in men vs women of that age group, but not drastic changes to such a gap. I’d also rule out brain development as a factor simply based on differences between countries. Human populations do have variances, but not to such a degree when it concerns something this fundamental.
This may have affected my younger brain’s susceptibility to extremist views
Or for a positive spin “openness to new or different ideas and values”
Yes, but the way i read the chart it doesn’t differentiate between degrees of ideology; Just a binary “what percentage of the age group votes liberal vs conservative”. So at 0 there is a 50/50 there are equally as many liberals as conservatives, but it doesn’t provide any information how strong this ideological views are.