Just wanted to throw in there that I don’t think critical thinking is a ‘skill’ that can actually be taught though I know that this runs counter to very many texts written on the subject. I think we can give our students help / tips in terms of metacognitive strategies as an initial first level towards critical thinking.
Yes you are right and a lot depends on what the subject context is. And certainly some people are more open and interested in being able to think critically than others. I suppose it's up to the individual to decide to continue that particular skill across other areas of their life, outside formal education.
At the same time, how much time a curriculum is willing to give on fostering that is really important imo. Vygotsky's 'zone of proximal development' is useful here. All skills need a basic knowledge, that goes without saying. It's how you apply the knowledge, that's the skill. Pull it all together and in different contexts. And being given enough time to practise, in different ways. I do feel it's less of a focus in the primary curriculum these days.
The more time spent on appropriately scaffolded ZPD at a younger age, that might focus on a level of critical thought and debate, the more likely they are to learn those skills across other areas.
How students are questioned and challenged by educators is really important, especially if we want to teach not taking things at face value. Particularly open ended questioning. But educators themselves need to have had that experience of being able to question something from many angles themselves. And be a devil's advocate. (Hence importance of free speech, debate and critical thinking skills)
Tbh if you're going to achieve any of the above, all very important for any profession, a key value you should encompass and encourage is around freedom of speech, debate and inquiry.
The more those at the top demonstrate their own ability to both be critical thinkers and welcome respectful critical debate and thought, the more it becomes a natural part of how an organisation works. (Really important for safeguarding, actually. An org must be self reflective and self critical.)
I'm keen to learn what these "values" are, you never know, could be revolutionary - when is the big reveal?!😄
(Piaget, Vygotsky and von Glasersfeld explained here for anyone interested www.phoenix.edu/blog/what-is-constructivism.html)