I am inclined to think that easy entertainment and a devaluation of the intellectual life (it is no longer admirable nor sufficiently valuable being an intellectual) can be a partial explanation. The first one leads to distractions and our time being occupied by mindless activities. The second keeps us there as people are indifferent to studying and asking questions. It has become a personal choice, a kind of hobby or trait of certain individuals, and not something that we all should be doing. And I'm not saying that everyone should be a Leonardo da Vinci excelling in philosophy, sciences, arts, etc.; but I do believe we should be thinking critically and informing ourselves to the extent possible, otherwise, our reading comprehension and many other things get affected.

I'm sorry if my grammar betrays my words, I am not a native speaker.

That said, I think these are some of our obstacles, but other times had had their own obstacles. I'm sure the average citizen from, I don't know, Istanbul, London, Tokyo, some centuries ago was also very opinionated and ignorant of many things. It has been the constant, the rule, for millennia.