A self-administered term which implies that the person thinks the their age group is superior to children of the other decades. Also implies that children of the following decades were not exposed to things such as 90s cartoons and video casettes.
"I just watch an old Disney movie... I'm such a 90s kid."
"You shouldn't have a phone at your age. You should have grown up in the nineties. 90s kids were raised better."