When I was younger I was far more rigid, and "black and white", in regards to my thinking and reasoning about things.
Between the age of 19, and now in my late 20s, I have become much less rigid in my ways, and less black & white about my thinking, and approach to things & ideas. I don't know if it's part of growing up, or part of me having several experiences with psychedelics, or both.
I no longer let my beliefs or ideas about anything become absolutely concrete "truth", I'm open to different perspectives and ideas from others, I'm a very open minded individual. That's not to say I'm weak minded or easily impressionable, I'm just willing to listen to different ideas and takes on something that might be completely different from mine, and willing to accept I may be wrong.