>>93526425Pretty much this. I was born in 1993, so I'd consider myself either one of the last of the 90's kids or the archetypical 2000's kids.
Most of my best memories of pop culture can be dated to around 1997-2006, or around Pre-K to Seventh Grade, when I was in Elementary School (I lived in a rural and poor area so we didn't have a middle school, Sixth and Seventh Grade went to Elementary School and Eighth Graders went to the High School)
Specifically, my pop culture memories probably begin in late 1997 and end in early 2006.
You had Fox Kids, the short-lived Fox Family, Kids WB!, some of PBS's better materials like Arthur and George Carlin-era Thomas The Tank Engine when I was really little, and the best years of Nickelodeon, Cartoon Network, and of course, Adult Swim's Golden Age of 2004-2005 when anime was on every night except Sunday and the comedies were actually funny (well, except for King of the Hill and Bob's Burgers, but those are reruns)
My parents were really permissive and let me watch The Simpsons, King of the Hill, Futurama, and most of Adult Swim's anime repertoire (or just non-kiddie anime in general) since I was a little kid. I couldn't watch South Park or Family Guy until I was twelve though.
I had a lot of good memories of great shows. And to answer the question of when did 90's culture end, I'd say 9/11 killed the innocence of the 90's, but a lot of cultural elements and tropes hung around in the media until at least 2002 and 2003 at the latest.
I'd cut off the 90's at Fall 2002, by then it had been a year since 9/11, we had been involved in a war that was quickly becoming a quagmire and were about to head into yet another unwinnable war, Fox Kids died and became Fox Box/4Kids TV, Digimon officially jumped the shark with the airing of Frontier, and Yu-Gi-Oh!, which had premiered the year before, officially dethroned Pokémon as the big new thing and would dominate the mid-2000's.
Pic related, my childhood hero