It's a very blurry thing. Beshi bujha, kom bujha ashole depend kore on gaining various experiences as well as age. Ofcourse my parents understandings are greater in lots of areas because they have seen more of life than I have. But same goes for me too. Because we have different upbringing and I have seen lots of things as well, despite being younger than them.
Our generations have more knowledge than previous generations because it's the age of technology..of gathering and sharing and as well as creating information and just being more exposed to the world, which the previous generations didn't have the chance to. At least not as much.
For example: My parents didnt have the chance to travel various cities in North America alone when they were my age or even older. I had that opportunity. So I do know a bit more in that department. My mother never worked or had to worry about paying her bills and college and stuff. My dad didnt have a computer when he was in school. I do. My parents were not in Canada and were not exposed to different cultures and people with different mentalities and lifestyles than their own. I have. So I know more about different cultures and its peoples and their lifestyles than they do. And I've seen life and its ups and downsides the way they have NEVER seen. So emon na je ami jiboner kichui jani na, shudhu unara janen

We both know a lot...just often in different deparments
And before taking any huge decisions, I consult my parents. Eventhough we dont seem to agree on things from time to time, I let them know/ask anyways. That gives them a sense of having still a bit of a control over me. I am, after all, their child. As long as living with them ar ki. Parents love having that control, quite frankly. I dont always enjoy it...but I let them know stuffs