“nineties kids” we’re all born between 85-91ish. I agree that if you dont actually have formative memories from a decade, it doesnt make sense to call yourself “of that generation”.
I’m 31, and consider myself a 2000’s kid. I grew up with Fairly Odd Parents, GBA, and PS2, among others. I guess I don’t put much stock into my life before age 6; I moved to Canada when I was 5 and have already forgotten much of my native language.