It's good for keeping some privacy, somehow parents just can't understand something around : )

The generation gap has always existed. Parents don't understand their children and vice versa.

Yes,of course.In Chinese it called"代沟"。There is an old express——“三年一代沟”，it means if a people is older than another 3 years,it must exist a generation gap between them,I think it's true.

Who cares!