Don't forget us Xennials! 
The one that demonstrates it's based on childhood experience not year born.
Also suspiciously if you look at CBBC programming Xennials would have seen the transition from Playschool to Playdays (and many other programming changes) so it's not just computers.
I've always considered myself to be on the GenX side of that particular borderline, on account of remembering the Challenger disaster, and having the privilege to be an Old Internet Person
[1] (although a post-September one).
My early childhood was mostly in a weird ext-pat parents / hearing impairment / not-having-a-telly cultural bubble, which adds to the effect. If we're talking Children's BBC (as it was), then I was the tail end of the Playscool cohort, and was definitely too old for Playbus when it came along (it didn't become Playdays until some time later).
While I wasn't involved in the LGBT community until well after the plague
[2], I had a perspective on the
SCIENCE side of it growing up. It remains the defining feature of the older generation who survived it. I suppose there's another generational gap with the baby queers who've never been meaningfully closeted (I literally cannot imagine what it's like to be accepted at school). I note that I still describe myself as 'bisexual', because it's the word that my generation used - I can't bring myself to use 'pansexual', because the perceived wankiness outweighs the extra precision.
That said, male prime ministers remain a novelty, and failure to Adult in a timely manner means I missed out on the whole chance-of-being-able-to-afford-housing
[3] thing, which is perhaps the defining feature of Millenials and those who followed.
[1] ©2019 Gretchen McCulloch, whose book is now becoming dated. I reckon she's right about not defining generations of internet users by their chronological age.
[2] The other pandemic for those keeping count.
[3] Without the aid of rich parents, which in my case I have not got.
