From the outside

A vacant question is: How do youngsters that grow in time after your experiences started perceive the world? How do they think about things which you're aware of they've taken hold in your lifetime? How do they live with things which had already been there at the time of their birth?
What do they think about things which they get introduced to which are no deal anymore during the time they are already alive?
What crosses their minds if they're clueless about the development of things which another elder person beside them knows about?
What is the position like if you don't know about any of this? If you just happen to drop in in between somewhere at the timeline and the progress is unknown to you?
What does this ignorance look like from the inside and how much do actually they care?
Can they really imagine the world functioning without certain things they got to know, if they know about it they didn't exist in former times?
And - is it actually a bother to them to think this through?